Wear them under your hiking socks as a barrier against chafing, or wear them alone on hot day hikes. The REI Co-op COOLMAX EcoMade liner socks are moisture-wicking, breathable and durable.
Features
- The polyester yarn in REI Co-op COOLMAX® EcoMade liner socks is made from recycled water bottles
- Nylon adds durability, while spandex offers stretch and shape retention so the fit will remain snug, wash after wash
- Smooth, flat toe seams ensure no bunching or irritation for your toes
- Machine wash inside out in cold or warm water; no bleach or fabric softener; tumble dry low
- Made to reflect our love for people and the planet through the use of recycled polyester, which keeps waste out of landfills
- Made in USA with imported and domestic yarns
Made in USA.
Technical Specs
| Best Use |
Hiking |
|---|---|
| Fabric |
50% COOLMAX EcoMade polyester/49% nylon/1% spandex |
| Sock Height |
Crew |
| Sock Cushioning |
No Cushioning |
| Quick Drying |
Yes |
| Moisture Wicking |
Yes |
| Gender |
Unisex |
| Sustainability |
Contains recycled materials |
Size Chart
| 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 |
Sizing Notes
For socks, please use shoe size.

















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