When worn underneath your hiking socks, the REI COOLMAX EcoMade Liner socks offer a moisture-wicking, breathable, quick-drying barrier. COOLMAX® EcoMade fabric is made of recycled PET polyester.
- Nylon adds durability while spandex offers stretch and shape retention; the snug fit will remain, wash after wash
- Smooth, flat toe seams ensure no bunching or irritation for your toes
- Made in USA with imported and domestic yarns
- REI is Climate Neutral Certified; as we work to actively reduce our footprint, we measure annual carbon emissions and purchase an equivalent amount of verified carbon credits
| Best Use | Hiking |
|---|---|
| Fabric | 60% COOLMAX EcoMade polyester/38% nylon/2% spandex |
| Sock Height | Crew |
| Sock Cushioning | No Cushioning |
| Quick Drying | Yes |
| Moisture Wicking | Yes |
| Gender | Unisex |
| Sustainability | Contains recycled materials From a Climate Neutral Certified brand |
REI Co-op Socks - Unisex Adult
| 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.