Merrell Siren Edge 3 Review

The Siren Edge 3 is a budget-friendly model from Merrell with a lot to recommend them but be aware that they lack waterproofing which may limit their appeal.

Merrell womens Siren Edge 3 Hiking Shoe, Rock/Bluestone, 5 US

Pros / Reasons to Buy

  • Very light
  • Often very reasonably priced

Cons / Reasons to Avoid

  • Not waterproof
  • Some durability concerns

See the Merrell Siren Edge 3 in more detail: 

Editor’s note: This article is part of our guide to the best hiking shoes, be sure to check out the rest of this guide for our top buying tips:

Light, breathable, stylish, from a reputable brand, and often very reasonably priced. The Merrell Siren Edge 3 has a lot of positives going for it. The downside is that they lack waterproofing – at least in the variant we assessed – and we did have some long-term durability concerns. Despite the negative points, we were still impressed overall with these shoes, and we think they would make an excellent choice for those who live and hike in warm, dry conditions. The lack of waterproofing means that we can’t recommend them as an all-round, general hiking shoe, but, if you need something that will keep the rain out and otherwise like the sound of the Siren Edge 3, it’s worth noting that Merrell offer a slightly more expensive variant of these shoes that integrates a waterproof membrane.

Compare to Similar Products: 

Product
Danner Womens Trail 2650
Columbia Women's Trailstorm
Hoka Speedgoat 5
Adidas Terrex Swift R3 Gore-Tex
Keen Zionic Speed
Altra Lone Peak 7
Adidas Terrex AX4 Gore-Tex Hiking Shoes
Keen NXIS EVO Low Height Waterproof Hiking Shoe
La Sportiva Spire GTX
Merrell Moab Speed
Oboz Sawtooth X Low Waterproof
On Cloudwander Waterproof
Merrell Siren Edge 3
Danner 612836M Women's Trail 2650 3' Gray/Blue/Spectra Yellow 6M
Columbia Women's Trailstorm Waterproof Hiking Boot
HOKA ONE ONE Womens Speedgoat 5 Textile Synthetic Scuba Blue Black Trainers 8 US
adidas Terrex Swift R3 Gore-TEX Hiking Shoes Women's, Grey, Size 9.5
KEEN Women's Zionic Low Height Waterproof All Terrain Hiking Shoes, Desert Sage/Ember Glow, 5
ALTRA Women's AL0A7R7G Lone Peak 7 Trail Running Shoe, Light Gray - 5.5 M US
adidas Women's Terrex AX4 Primegreen Hiking Shoe, Magic Grey/Dash Grey/Acid Red - 5
KEEN Women's NXIS Evo Low Height Waterproof Fast Packing Hiking Shoes, Sea Moss/Ipanema, 11
La Sportiva Womens Spire GTX Low Hiking Shoes, Clay/Celery, 8.5
Merrell Moab Speed Hiking Shoes for Women – Textile Construction – PU Foam Insole – FloatPro Foam™ Midsole Black 6.5 M
Oboz Sawtooth X Low B-Dry Hiking Shoe - Women's Slate - 5 Medium
ON Womens Cloudwander Waterproof Textile Synthetic Black Eclipse Trainers 8.5 US
Merrell womens Siren Edge 3 Hiking Shoe, Rock/Bluestone, 5 US
Buying Options
Our Ratings
Best Overall Women's
Best Budget
Best Lightweight
Best for Winter
Best for Long Distances
Best for Trail Running
Pros
Durable build. Extremely comfortable
Exceptionally good hiking shoe for the price point. Clever traction design in the lugs
Extremely well cushioned and comfortable fit. Deep lugs offer good traction on slippery surfaces
Well protected and durable. Great traction and feels very grippy
A great fast and light shoe. Roomy toe box, and comfortable for wider feet
Roomy toe box. Excellent traction.
Striking design. Makes use of recycled material
Light weight. Good environmental credentials
Light Weight. Ultra breathable
Lightweight. Iconic Moab fit and comfort
Durable build. Good water resistance
Excellent balance of weight and waterproofing. Stiffer design gives a more technical feel
Very light. Often very reasonably priced
Cons
Not the cheapest. We found they didn't keep our feet warm in wet conditions
Breathability concerns in warmer temperatures
Colorways are divisive. lacking in stiffness between outsole and midsole
Pretty rigid - not the most fast and light shoe on the market, can feel a little big
Not waterproof. Durability concerns on the sole
Less durable. Pricey
Looks may be too much for some. Slightly narrow fit may be unsuitalbe for wider feet.
May not be best fit for narrower feet. A bit pricey
Pricey. Some may prefer a more rigid shoe
Not most supportive. More expensive than the regular Moab
Heavy. Longer break-in period
Some may find them too stiff. Can be pricey.
Not Waterproof. Some durability concerns
Traction
Vibram outsole with medium/deep thread pattern
Extremely good
Very good
Extremely good
Average
Full rubber outsole with medium/deep thread pattern
Continental outsole with medium deep thread depth
Full rubber outsole with medium thread depth
Vibram outsole with deep thread pattern
Vibram outsole with medium/deep thread pattern.
Very good
Very good
Good
Breathability
Perforated suede outer with breathable mesh inner
Not so great
Good
Good, but Gore-Tex membrane does play in here
Excellent
Full mesh upper
Breathable mesh upper with Core-Tex membrane
Breathable mesh upper and lining with anti-odor treatment
Breathable mesh upper with Gore-Tex
Full mesh upper
Average
Good
Very good
Ankle Support
Minimal - Low top shoe with minimal ankle support
Minimal
Minimal
Minimal
Minimal
Minimal - Low top shoe with minimal ankle support
Minimal - Low top shoe with minimal ankle support
Minimal - Low top shoe with minimal ankle support
Minimal - Low top shoe with minimal ankle support
Minimal - Low top shoe with minimal ankle support
Minimal
Minimal
Minimal
Arch support
Gentle arch support
Regular
Regular
Regular
Minimal
Gentle
Subtle arch support
Gentle arch support
Gentle arch support
Gentle
Good
Regular
Regular
Fit
Available in medium width and in sizes from US 5/ UK 3.5/ EU 36 up to US 11/ UK 9.5/ EU 44
Regular
Standard/slightly wide
Regular/wide
Standard/slightly wide
Roomy and good for wider feet with natural movement. Available in sizes from US 5.5/UK 3.5/EU 36 to US 12/UK 10/EU 44.5
Available in sizes from US 5/ UK 3.5 /EU 36 up to US 12/ UK 10.5/ EU 45.3
Iconic Keen fit' - Wider fit with extra space at forefoot. Available in sizes from US 5/ UK 3.5/ EU 36 up to US 12/ UK 9/ EU 43
Fits true. Typically suitable for normal to narrow feet. Available in sizes from US 5/ UK 3/EU 36 up to US 11/ UK 9/ EU 42
Similar to the Moab 3 - but a little more narrow but still suitable for most hikers. Available in sizes from US 5/UK 2.5/EU 35 to US 11.5/UK 9/EU 43
Normal and wide verisons available
Standard/slightly narrow
Normal and wide versions available
Materials
Suede and synthetic
Synthetic
Synthetic
Synthetic with 50% recycled upper
Synthetic
Fully synthetic
Fully synthetic with Gore-Tex membrane. Adidas claims upper contains a minimum of 50% recycled material
Fully synthetic with waterproof 'KEEN.DRY' membrane
Fully synthetic with Gore-Tex membrane
Fully synthetic. Merrell claim these sheos are vegan.
Synthetic and leather
Synthetic
Synthetic
Appearance
Modern design with classic elements and materials. Available in a wide range of colour ways.
Modern cross between hiking shoe and trail runner
Trail running shoe
Modern hiking shoe
Trail running shoe
A really nice looking shoe that could work well for multiple purposes such as hiking and trail running - with a variety of striking color designs
Striking angluar design available in a wide rang eof colour ways
Distinctive good looks available in multiple colour ways
Available in multiple colour ways with striking styling, typical of La Sportiva.
Does something inbetween a hiking shoe and trail runner and comes in a variety of striking colourways
Modern hiking shoe
Modern hiking shoe
Modern hiking shoe
Durability
Very high
Considering the price point, seems durable
Average
Rip resistant synethetic finish with durable Continental sole
Longer term durability concerns
Medium to high
Medium to high
Medium to high
Medium to high
Medium to high
Excellent
Good
Some durability concerns
Weight (pair)
680g/1lb 08oz
500g/1lb 3oz
460g/1lb
700g/1lb 7oz
544g/1lb 2oz
635g/1lb 4.5oz
758g/1lb 11oz
644g/1lb 6oz
740g/1lb 10oz
640g/1lb5oz
800g/1lb 12oz
640g/1lb 7oz
560g/1lb 4oz
Insoles
Removable three-layer cushioned insoles
Standard insole
Standard insole
Standard insole
Standard insole
Removable padded insole
Removable insoles
Removable padded insole
Removable padded insole
Removable padded insole
Paded, shaped 'O FIT' insole
Standard insole
Standard insole
Break-in Period
Minimal
Minimal break in
Minimal
Minimal break in
Minimal break in
Very minimal
Minimal
Minimal
Minimal
Very minimal
Short break in period
Short break in period
Very minimal
Lacing system
Standard laces
Ghillie lacing
Standard lacing system
Traditional laces
Traditional laces
Standard laces
Standard laces
Standard laces
Standard laces
Standard laces
Standard laces
Standard laces
Standard laces
Toe Protection
Rubeerized, semi-rigid toe cap with rubber rand around front section of shoe
Rubber toe rand
Rubber toe rand
Rubber toe rand
Minimal rubber toe rand
Hard but not solid
Rubberized, reinforced, but non-rigid toe and front section
Hard, but not solid, rubber toe cap.
Non-rigid PU 'TechLite' toe cap
Hardened rubber toe cap
Reinforced toe
Rubber toe rand and small toe cap
Reinforced toe

Analysis and Test Results

Merrell are one of the big players in the outdoor footwear industry and they make a range of well-respected products targeting both hikers and trail runners. These Siren Edge 3 shoes are definitely a budget-focused product, and they can often be found at a very attractive price point. This alone will surely make them appeal to a lot of people, but beyond their price these shoes are comfortable, very light-weight and breathable too – all of which are very desirable characteristics. The downside is that they are not waterproof at all – which, in our opinion, should rule them out if you hike anywhere you are likely to encounter rain or have to cross wet ground. However, if you live and hike somewhere warm and dry, they are a compelling choice, and we think they warrant some attention.

Performance Comparison

Merrell Siren 4

Traction

The Merrell Siren Edge 3 features a Vibram sole with a deep thread pattern. The sole provides positive grip on uneven surfaces, but as with all the shoes we’ve assessed, wet, muddy or icy surfaces can cause the traction to fall off dramatically. On this note, it’s worth bearing in mind that as the Siren edge 3 has no waterproofing, it’s a poor choice for hiking in wet weather, so these traction limitations should not pose a problem under the conditions this shoe is intended for.

Merrell Siren 4 Traction

Breathability

The Merrell Siren Edge 3 has excellent breathability. The shoe features large, vented panels in its side and there is no waterproof membrane. Whilst waterproof membranes like Gore-Tex are breathable, they do compromise breathability somewhat – that isn’t an issue here! The bottom line is that if you are hiking in warm conditions, these shoes are a good option.

Ankle Support

These are hiking shoes and not boots, so, they don’t provide any direct ankle support. Many hikers will prefer the lighter weight and increased foot mobility offered by shoes over boots, so the lack of ankle support isn’t necessarily a bad thing.

Arch Support

The Siren Edge 3 comes with a fairly generic set of insoles that offer neutral arch support. These are on par with what’s provided by most of Merrell’s competitors and will suit most buyers of these shoes just fine. If you do prefer or need more arch support, it’s trivial to swap out the provided insoles for something more heavily shaped and supportive.

Fit

Merrell offers the Siren Edge 3 in a wide range of sizes – from US 5/UK 2.5/EU 35 all the way up to US 12/UK 9.5/EU 43.5. The shoes are also available in either standard or wide widths. The shoes fit true to size.

Materials

In common with many contemporary hiking shoes, the Merrell Siren Edge 3 is made completely from synthetic material. The choice of synthetics helps Merrell to keep the weight low and the breathability good – both key features of these shoes.

Merrell Siren 4 Materials

Appearance

The Merrell Siren Edge 3 has the look and feel of a modern trainer. It’s a very subjective thing, but the design is maybe not as elegant as some of the other shoes we’ve assessed, however we certainly don’t think these are bad-looking shoes. Indeed, we could easily imagine that a lot of these shoes get bought for day-to-day wear and never go anywhere near a trail. The shoe is offered in a wide range of different color ways ranging from neutral options to some more vivid combos.

Durability

We have some concerns about the long-term durability of the Merrell Siren Edge 3. The shoes appear well-made and finished, but the lightweight materials show signs of wear quickly. The shoes are far from flimsy, and we suspect that any wear they show would be purely cosmetic for a long time, however it’s clear that the low weight and attractive price point of these shoes does come at the expense of durability.

Sustainability

Merrell’s sustainability credentials are a bit of a mixed bag. The company has some ambitious sustainability targets including a commitment to integrate recycled material into every one of their products by 2025, reducing water used in production and cutting back on plastic packing material. However, for now, they don’t publish data on individual products outside of a few specific models (which don’t include the Siren Edge 3), so we can’t tell for sure if these shoes incorporate any recycled material or use sustainably manufacturing methods.

Water Resistance

The Merrell Siren Edge 3 is offered in two versions: there’s the regular version we have assessed and slightly more expensive ‘Waterproof’ version that has an integrated waterproof breathable membrane. The upshot of this is that the shoes we’ve assessed here are not waterproof at all. The outer will keep your feet dry in very light rain or from gentle splashes, but that’s it and, if you wear these in wet conditions you have to expect that your feet will get wet. In our opinion, this lack of waterproofing makes the Siren Edge 3 – at least the non-waterproof version we’ve assessed – unsuitable as a general-purpose hiking shoe if you hike in mixed weather. However, if you live and hike somewhere warm and dry, water resistance is likely not a key concern and in this case, the Siren Edge 3’s light weight and breathability make them quite an attractive option.

Merrell Siren 4 Water Resistance

Weight

Weighing in at 560g/1lb 4oz, the Merrell Siren Edge 3 are amongst the lightest shoes we’ve assessed. The fact that they are also a very budget-friendly model is particularly noteworthy as extreme lightness normally comes at a cost. Even if cost isn’t your main reason for considering these shoes, their light weight is certain to attract attention as weight carried on your feet is disproportionately fatiguing relative to the same amount of weight carried elsewhere – in short, if you want to reduce the weight of your gear to hike further or faster, then weight saved on your shoes will make more of a difference than the same amount of weight saved on, say, a backpack. Unfortunately, the low weight of these shoes does come with another cost: as we mentioned above, we do have some concerns with the durability of these shoes and the light materials used are certainly a contributing factor to this.

Insoles

The Merrell Siren Edge 3 are supplied with some fairly generic padded insoles. Most buyers probably won’t give the insoles a second thought and will be absolutely fine with them. However, if you want to fine-tune the fit of your shoes or add extra arch support, swapping out the insoles for some aftermarket or custom-made alternatives is a great and relatively inexpensive way to transform the fit of your shoes. For some hikers, this swap can make a massive difference to comfort on the trail too.

Break-in Period

These shoes are light, soft and flexible. This means they are comfortable straight out of the box and, whilst we don’t think any footwear is completely without a break-in period, these come very close. We’d be confident to wear these out on a long hike after just one or two shorter walks.

Lacing System

The Siren Edge 3 fastens with regular laces. Whilst laces may not seem like an interesting subject, the fact is that they are a very versatile way to close your shoes and give you a lot of flexibility in terms of fine-tuning the fit of your shoes. If you experience rubbing or chafing, then adjusting the laces can often go a long way towards remedying this. You can make even bigger changes to the fit and comfort of your shoes by experimenting with different lacing patterns.

Merrell Siren 4 Lacing System

Toe Protection

The Merrell Siren Edge 3 offers fairly minimal toe protection, though it is in line with other light weight hiking shoes. The front of the shoe is slightly reinforced, and the sole extends up at the very front to form a small toe cap or bumper. This level of protection should be enough to take the edge off the kind of bumps you get if you kick into a rock or trip on a root on the trail and will certainly go some way towards preventing stubbed toes.

Merrell Siren 4 Toe Protection

Conclusion

The Merrell Siren Edge 3 are a budget-friendly hiking shoe from a well-known and well-respect outdoor footwear brand. Whilst they do offer some attractive features – they are very light and breathable – it’s important to note that they have their limits too. We have some concerns about the long-term durability of these shoes, and they lack any sort of waterproofing which, straight away, will rule them out as an option if you hike in changeable weather. On this last point, bear in mind that there’s a near-identical, but slightly more expensive variant of this shoe that does have a waterproof membrane. Reservations aside, these are capable shoes and if you hike in dry places and value light weight, they are a very interesting option.

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