Trail Midweight Crew Size:Extra Large a mesh top and COOLMAX®

a mesh top and COOLMAX® EcoMade fibers help keep feet dry and cool

PU coated synthetic overlays

Internal hydration sleeve with SpeedClip hydration hanger compatible with Gregory's 3D Hydro Trek reservoir (reservoir not included)

shin splintsIMPORTANT: Consult a physician before using UltraFlexx® with any pre-existing calf

Trail Midweight Crew Size:Extra Large a mesh top and COOLMAX®Product Details This is the sock for long runs and aggressive hikes on rugged terrain. Our toesock design minimizes friction between the toes to help eliminate blisters, frees them to splay naturally, and lets you utilize your whole foot on narrow, uneven trails. The crew length rides high to seal out debris, and a band under the arch adds support. COOLMAX fibers and a mesh top keep feet dry and cool, nylon fibers add durability, and midweight