Keep the chill out and the warmth in with the Timberland Chillberg. Waterproof full-grain leather and synthetic upper with seam-sealed construction keeps feet dry. Traditional lace closure for a secure fit. OrthoLite® footbed provides all-day cushioning and support. "Does it FIT?" sockliner allows you to get the right fit every time. Nylon shank for arch support. Green Rubber™ outsole made from 42% recycled rubber is designed for traction and durability. Crash Blaster™ technology provides enhanced cushioning that reduces shock to the body for all-day comfort while running, jumping, and playing.