Running, hiking, or a brisk morning walk – the lightweight Climate Shirt keeps off the chill, never overheats, and wicks sweat. Running, hiking, or a brisk morning walk – the lightweight Climate Shirt keeps off the chill, never overheats, and wicks sweat. Weight: 203g. The 100% recycled polyester mid-layer shirt. Lightweight for maximum performance. Adaptive fabric that works for both cool and warm runs. Four-way stretch fabric for complete freedom. 3D waffle construction for greater absorbency. Fast-drying fabric construction. Built-in thumbholes and watch windows. Composition: 100% Recycled polyester. Weight: 203g. The 100% recycled polyester mid-layer shirt. Lightweight for maximum performance. Adaptive fabric that works for both cool and warm runs. Four-way stretch fabric for complete freedom. 3D waffle construction for greater absorbency. Fast-drying fabric construction. Built-in thumbholes and watch windows. Composition: 100% Recycled polyester. Color: purple