Mountain Hardwear Stretch Ozonic Pants Review

The Mountain Hardwear Stretch Ozonic Pants are a good option that gives a good range of movement and offers more features than comparable rain pants.

Mountain Hardwear Women's Stretch Ozonic Pant, Black, Small
  • Good range of movement
  • Packs away into a pocket

Cons / Reasons to Avoid

  • Not very durable

If you are looking for a pair of flexible rain pants that give you a good range of movement, these would be a good choice. The 3/4-length zips and zippered fly make them easy to get on and off. The fabric used to make these pants is lightweight and has a four-way stretch. This makes them comfortable to wear with an excellent range of movement, and they can be packed neatly into the pocket. We have picked these as the best rain pants for women.

Compare to similar products: 

Mountain Hardwear Stretch Ozonic Pants
Marmot Minimalist Pant
Outdoor Research Helium Pant
Arc'teryx Beta AR Pant
Mamot PreCip Eco Pant Full Zip
The North Face Men's Antora Hiking Pants
Rab Downpour Eco Pant
Columbia Rebel Roamer
Showers Pass Transit
Mountain Hardwear Women's Stretch Ozonic Pant, Black, Small
MARMOT Men's Minimalist Pant, Black, Medium
Outdoor Research Women's Helium Rain Pants – Breathable & Weatherproof Pants Black
Arc'teryx Beta AR Pant Men's | Versatile Gore-Tex Pro Pant for All Round Use | Black, Large
MARMOT Women's PreCip Eco Full Zip Pant | Lightweight, Waterproof Pants for Women, Ideal for Hiking, Jogging, and Camping, 75% Recycled, Black, Medium
THE NORTH FACE Antora Mens Rain Pants Vanadis Grey Sz M
RAB Men's Downpour Eco Pants Waterproof Breathable Rain Pants for Hiking & Trekking - Black - Medium
Columbia Men's Rebel Roamer Pant, Waterproof & Breathable Black
Showers Pass Men's Transit Pants - Waterproof & Breathable Rain Gear - Ultralight & Packable for Outdoor Activities - Previous Year - Black Color - XX-Large
Buying Options
Our Award
Women's Performance
Women's Best Lightweight
Men's Performance
Women's Best Rain Pant for Hiking
Men's Best Value
Men's Best Cycling
Waterproof Fabric
2.5L Dry.Q Stretch Ripstop
2.5L Gore-Tex with PacLite Technology
2.5L Pertex Shield Diamond Fuse
Gore-Tex Pro
Nono Pro Eco
2L DryVent Seam Sealed
Pertex Shield Membrane
Omni-Tech Waterproof/Breathable
Face Fabric
100% Recycled Polyester
100% Polyester
30D 100& Nylon Ripstop
N40r-X Gore-Tex Pro
100% Recycled Nylon Ripstop
100% Recycled Nylon Ripstop with DWR Finish
Artex 3-Layer
70D 100% Nylon
Artex 3-Layer
Price not available
Price not available

Analysis and Test Results

The Mountain Hardwear Stretch Ozonic Pants are excellent lightweight pants with some intelligent features.

The 3/4-length zipper combined with a zippered fly means these pants can easily be put on or removed without hopping around on one leg.

The two-way zips are protected by storm flaps and secured at the bottom by a press stud. The 2.5-layer material is, as the name suggests, stretchy, so these are comfortable to wear and allow you to move freely.

It has decent breathability and waterproofing, which, while it won’t keep you dry in heavy rain for too long, is ideal for hiking. A handy pocket on the front is also used for stuffing the pants into when you are not wearing them.

Performance Comparison

Water Resistance

The main material used to make these pants is Mountain Hardwear’s own branded fabric, Dry.Q. They don’t release figures for the waterproof rating of Dry.Q, but independent testers rate it at about 20,000 mm. The zippers on both the legs and the pocket are protected with flaps to prevent rain from leaking in, and the seams are all taped.


Mountain Hardwear claims that one of the advantages of its Dry.Q material is that its air-permeable membrane allows not just moisture but also air to pass through it. They say their fabric is up to two times more breathable than industry standards.

When tested, the two-layer Elite measured 40,000 g/m2/24 hrs, and the three-layer Elite measured 30,000 g/m2/24 hrs. They do not give the breathability of these pants, but independent testers have calculated it as 15,000 g/m2/24 hrs.

However, these waterproof pants have 3/4-length zippers on the outside of the legs that can be opened from either the top or the bottom. So, if you are exerting yourself, it is easy to open the zips as much as is needed to keep you from getting sweaty.

Comfort and Mobility

One thing that makes these such a good pair of hiking pants is the fabric’s stretchiness. They feel comfortable to wear, and they don’t restrict your movements at all. While the knees are not articulated, the ‘anatomical cut’ means they fit well. The waist is elasticated with a drawcord to secure it.


Mountain Hardwear worked with GE to develop their Dry-Q fabric, which is based on the technology used for the eVent membrane.  They removed the continuous PU layer over the PTFE membrane so any moisture inside the pants immediately passes through the material.

The version of Dry.Q used to make these pants is a 2.5-layer fabric. The face fabric is 50 denier, stretch, ripstop, and 100% recycled polyester, and the inside of the membrane has a printed pattern to protect it.


As you might expect with lightweight, 2.5-layer material, these hiking pants could be more durable. They are fine for walking along a trail, but they are not robust enough to be worn for activities such as bushwhacking.

These pants come with Mountain Hardwear’s limited lifetime warranty. The cover is valid until the manufacturer deems “the product to be worn out beyond reasonable repair or replacement”. Your pants will either be repaired, or you will get a Virtual Merchandise Credit.

Weight and Packability

These rain pants are designed to be light enough to carry in your backpack in case it rains. The thin, stretchy material means these pants can easily be stuffed into the pocket and zipped close to make a compact package. The Mountain Hardwear Stretch Ozonic Pants weigh:


10.9 oz / 310 g


10.6 oz / 300 g


The stretchy fabric, the lightweight materials, the 3/4-length zippers, and the packability of these pants are their most attractive features. In addition to these features, they have some other helpful points that hikers like.

A welcome but seldom-seen addition is the generously sized pocket on the front of the right thigh. The zip to open the pocket does not have a flap to protect it, which is disappointing as rain could drip inside.

Flaps protect the 3/4-length zippers, which are secured at the ankle by a press stud. The cuffs are elasticated to ensure a good fit to your boots. The waistband is also elasticated, and it has a drawcord that can be knotted to secure the fit. There is a zippered fly that is fastened with a press stud.


On their website, Mountain Hardwear says: “We are committed to exploring innovative ways of doing business that will support a sustainable future. Our current focus is on putting in place industry leading systems and reporting mechanisms to enable efficient measurement of our social and environmental performance and to provide increased transparency into our practices.” They give no other details, and they do not appear to have Bluesign or Free Trade certification.


The Mountain Hardwear Stretch Ozonic Pants are excellent lightweight rain pants with some great features. Although they are made from 2.5-layer material, the ¾ zips help to ensure you have excellent breathability.

These pants will keep you dry for hours unless you’re in heavy rain. The stretchy material makes them comfortable to wear with a great range of motion, and they easily pack down into the pocket.

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