Keen Men's Olympus Lite Crew Socks Color:Gray Battery: Uses four AA Lithium

Battery: Uses four AA Lithium Batteries (not included)

with 3 volts and a 1550 mAh capacity

megol nose and temple pads

Trac-Tec grip-tape inserts provide an extra-secure grip

Size and Weight: L 107mm (4

Keen Men's Olympus Lite Crew Socks Color:Gray Battery: Uses four AA LithiumTested strong, the Olympus is the most durable sock on the trail. Heel and toe Dura Zone features high tenacity nylon fibers for comfort and durability for strong abrasion resistance. Heel Hold cup construction holds the heel for secure, natural fit. Features the KEEN Wunderseam seamless toe in flex zone and a ventilated mesh panel for added breathability. Weight: Lite Material: Merino Wool 49%, Nylon 39%, Dyneema Polyethylene 8%, Polyester 2%, Lycra