Adidas Response Trail 21 Women's Running Shoes Air Mesh Upper - Allows air to fully permeate the shoe's interior, keeping the foot, cool, dry and comfortable. Comfortable Textile Lining - Intelligently wicks moisture away from the skin whilst delivering a decadently soft fit. Heel Stabiliser - Secures the foot firmly in place for a reliable, comfortable lockdown. TRAXION Outsole - Delivers outstanding grip and traction on a multitude of surfaces. Weight - 275 grams.