Klim's Aggressor Cool 1.0 Base Layers provide a level of cooling comfort never before seen in the power sports industry, Coolcore's™ patented chemical-free cooling, moisture-wicking, moisture transportation and cool evaporation fabrics used in these base layers are exactly what you need to keep cool and maximize performance. Unlike other cooling and sweat-wicking fabrics that rely on chemicals or polymer crystal treatments that degrade over time, Klim's Aggressor Cool fabrics will deliver consistent cooling and wicking performance throughout the lifetime of the garment. When high performance athletes demand high performance cooling and comfort, they go to Klim's Aggressor Cool 1.0 base layers. Camo print and contrast stitching for max style. Coolcore™ patented chemical-free cooling fabric. Four-way stretch fabric throughout. Low-profile stitching and seams enhance comfort and increase mobility. Patterning removes in-seam stitching for ultimate riding comfort. Athletic contoured patterning. Breathable, moisture-wicking fabric. Fast-drying. Non-abrasive neck and arm holes. Flat lock stitching. Tagless.