The best rain pants for most hikers are the Patagonia Torrentshell 3L Pants, a durable 3-layer pair with long two-way side zips at around 11 to 12 oz; ultralight backpackers who mostly carry rain pants “just in case” should choose the Outdoor Research Helium Rain Pants at under 6 oz, and budget-minded hikers who want full-length zips to pull pants on over boots get the best value from the REI Co-op Rainier. Which is right depends on how often your rain gear pants come out of the pack, not just on the forecast.
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Do you really need rain pants?
Many hikers skip them in summer and accept wet legs, since legs generate heat and dry quickly. Waterproof rain pants earn their place when:
- temperatures are below about 50°F, where wet legs plus wind can chill you fast;
- you walk through wet brush or tall grass that soaks trousers even after the rain stops;
- you need a wind layer on exposed ridges or above treeline;
- you want a clean, dry layer to sit on at camp or wear over pajamas on a cold morning.
Rain pants compared
| Rain pants | Weight (men’s) | Fabric | Leg zips | Best for | Typical price range |
|---|---|---|---|---|---|
| Outdoor Research Helium Rain Pants | About 5.8–5.9 oz | 2.5-layer Pertex Shield, 30D nylon ripstop | Short ankle zips | Ultralight backpacking | $130–$170 |
| Patagonia Torrentshell 3L Pants | About 11.3–11.8 oz | 3-layer H2No, 50D recycled nylon | Two-way, cuff to thigh | All-round hiking | $130–$150 |
| REI Co-op Rainier Rain Pants | About 11.3–12 oz | 2.5-layer waterproof breathable nylon | Full-length side zips | Value, easy on over boots | $90–$110 |
| REI Co-op XeroCloud 3L Rain Pants | About 9.9 oz | 3-layer waterproof breathable | Ankle zips | Lighter 3-layer option | $130–$170 |
| REI Co-op Trailmade Rain Pants | About 7.8–9.5 oz | 2-layer waterproof | Ankle zips | Budget, occasional use | $60–$80 |
Picks by how you hike
Best overall hiking rain pants: Patagonia Torrentshell 3L
The Torrentshell 3L Pants use a 50-denier 3-layer shell, which resists abrasion from rocks, packs, and sitting on logs far better than lightweight 2.5-layer fabrics. Two-way zippers running from cuff to thigh let you vent from the top or pull the pants on over boots without taking them off. They are about twice the weight of the ultralight options, but for day hikers and backpackers in wet regions who wear rain pants often, the durability pays off.
Best ultralight rain pants: Outdoor Research Helium
At under 6 oz, the Helium pants weigh about half as much as the Torrentshell and pack to the size of a large apple. The 2.5-layer Pertex Shield fabric is fully waterproof, and short ankle zips help them go over trail runners. They are less durable and less breathable than 3-layer pants, and they will not slide over chunky boots easily, but if your rain pants spend most trips in your pack, this is the pair to carry.
Best value with full-length zips: REI Co-op Rainier
The Rainier’s full-length side zips are the feature that sells it. You can put the pants on or take them off with boots and crampons on, and open them wide for ventilation on climbs. They are similar in weight to the Torrentshell and generally cost less. REI also offers them in an inclusive size range.
Budget pick: REI Co-op Trailmade
For hikers who need raincoat pants a few times a year, the Trailmade covers the basics at a lower price and weight than the Rainier, though without side zips.
2.5-layer vs. 3-layer rain pants
| 2.5-layer | 3-layer | |
|---|---|---|
| Weight | Lighter (5–10 oz) | Heavier (10–14 oz) |
| Packed size | Smaller | Larger |
| Feel on skin | Can feel clammy and sticky | Smoother, more comfortable |
| Durability | Lower; inner print coating wears | Higher; inner scrim protects membrane |
| Best for | Occasional, emergency use | Frequent wear, long wet days |
Features worth paying for
- Leg zips: ankle zips (8–12 in) are enough for trail runners; full or three-quarter zips are worth it if you hike in boots or need to vent.
- Adjustable waist: a drawcord or elastic with a snap lets pants sit under a hip belt without sagging.
- Articulated knees and a gusseted crotch: high steps and scrambling without tearing seams.
- Reinforced instep patches: crampons and boot hooks shred the inner ankles of pants that lack them.
- Pockets: nice to have, but each adds weight. Many ultralight pants skip them.
Sizing
Rain pants go over other layers, so try them with the hiking pants or base layers you usually wear. Do a deep squat and a high step: the waist should not slide down and the hem should not ride above your boot. Inseam matters more than you might think; too short and water runs into your socks, too long and the hems drag and fray.
Care and what wears out first
- Inner ankles and seat wear first from boot hooks, crampons, and sitting on rough rock.
- Wash every few trips with a technical cleaner; dirt and body oils reduce breathability.
- Restore water repellency with low-heat tumble drying or a spray treatment when water stops beading on the knees and seat.
- Patch small holes promptly with gear repair tape before they spread.
FAQ
Can I use rain pants for skiing or snowshoeing?
For snowshoeing and spring touring, yes, especially 3-layer pants. For resort skiing, insulated or heavier ski pants with snow gaiters are more comfortable and durable.
Rain pants or rain chaps?
Rain chaps cover each leg separately, vent very well, and weigh even less, but leave your seat and crotch exposed. They pair well with a poncho in warm, wet climates.
