Feetures Women's Elite Ultra Light - Invisible Color:Blue Crystal Designed with hollow-core polyester insulation

Designed with hollow-core polyester insulation and a third layer of Drymax fibers along the front

The Swiftwick Flite XT Trail is a mid-crew trail sock designed for stability

easy-on wear

day after day

Breathable mesh zones increase ventilation across the top of the foot

Feetures Women's Elite Ultra Light - Invisible Color:Blue Crystal Designed with hollow-core polyester insulationInvisible Look. Unmatched Innovation. The Feetures Elite Ultra Light Invisible Sock is packed with performance driven tech in a sleek, no show design. Built for runners who want it allwithout the bulkthis sock features targeted compression, technical mesh ventilation, and Heel Hugger 2. 0 silicone tape to stay locked in place through even the toughest workouts. Invisible profile stays hidden in athletic and casual shoes Elevated heel tab protects