Klim's Aggressor Shirt provides the world's best upper body base layer performance and is the ideal beginning of your truly intelligent layering system. Dress right and you'll experience more comfort in all temperatures. With the world's best moisture-wicking, breathable, fast-drying and comfortable four-way next-to-skin stretch material, conditions from freezing to hot will be under your control. New low-profile micro-cuffs at the wrist increase comfort and the high contrast stitching adds a technical look. Whatever condition you ride in, the Aggressor Series ensures you'll be comfortable and dry ride-after-ride.