A high collar, 1/2 zip version of the original Helly Hansen base layer! Ideal for aerobic activities, providing comfort no matter how long and hard you plan to go. High collar for extra protection and 1/2 zip for venting and temperature control. This long-sleeve base layer top for men features cuffs and a regular fit for comfort. The HH Dry construction with 100% Lifa is a quick-dry, extremely breathable and super-lightweight high-performance base layer. Continually perfected over the last 40 years, Lifa Stay dry technology is the unique ingredient of all Helly Hansen base layers. Material: Polypropylene.