Merrell All Out Blaze Ventilator Gore-Tex Walking Shoes - SS17 Textile GORE-TEX Lining - Provides the ultimate in waterproof protection. Breathable Mesh Upper - Ensures your feet stay cool and comfortable. Soft E-Foam Midsole - For comfort and durability. Belows Tongue - Prevents dust and debris from entering the shoe. Molded TPU - For greater stability.