How to Choose Hiking Socks

Walk in comfort with this 2-pack of REI Co-op Merino Wool Ultralight Crew Hiking Socks. Cushioned only in critical areas, they naturally breathe, wick moisture and resist odors.
Made in USA.
View all REI Co-op Men's Hiking Socks| Best Use | Hiking |
|---|---|
| Fabric | 72% merino wool/26% nylon/2% LYCRA spandex |
| Sock Height | Crew |
| Sock Cushioning | Ultralight Cushioning |
| Quick Drying | Yes |
| Moisture Wicking | Yes |
| Gender | Unisex |
| Sustainability | From a Climate Label Certified brand |
| S | M | L | XL | S/M | L/XL | |
|---|---|---|---|---|---|---|
| U.S. Men's | 5.5-8.5 | 9-12 | 12.5-14 | 5.5-8.5 | 9-14 | |
| U.S. Women's | 4-6.5 | 7-9.5 | 10-12.5 | 4-9.5 | 10-12.5 |
For socks, please use shoe size.
From feedback to field testing, all of our gear is dialed-in by REI Co-op members. Their adventures informed every stitch and detail—making for better, longer-lasting gear.


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These socks are great, but the sizing is off. I wear a 7.5/8 in women's shoes, and the medium was way too big. I gave them to my husband, who wears an 11.5 in men's, and they fit him well.
horrible. thought if i didnt like them id use them for work. would never consider them to hike and i have other rei co op hikers i like. not these. bulky, feel weird on inside. no wonder they were on clearance sale. avoid these
Very loose fitting right out of the bag. Not true to size.
way too big on my 8-9 size foot (depending on brand)
These are like dress socks. So relatively thin. Fell good on the feet. I ordered size M which covers 42 EU size. So works for me.
These are summer socks. Material is very thin and lightweight but good quality.
You only get one pair. The ad, I think, is misleading.
Supposed to be two pairs only one arrived
These are too big but otherwise decent