Merrell Bare Access GTX Trail Running Shoes - AW15 Mesh Upper - Provides breathability. GORE-TEX - Waterproof upper protects the feet, keeping them dry and comfortable. Protective Toecap - A safeguard against potential abrasion. M Select FRESH - Quells the build up of odour carrying bacteria. M Bound Midsole - Increases the feedback between floor contact and the brain, accelerating response and stability.