Merrell Chameleon 5 GORE-TEX Waterproof Trail Walking Shoes GORE-TEX Performance Comfort Footwear Lining - Provides maximum waterproof protection from the elements Suede leather and mesh upper - For optimum comfort and breathability Bellows tongue - Keeps debris out External heel stability arm - Helps provide stability on rough and uneven terrain. Protective rubber toecap - Provides reinforced durability and protection