Hand Wash Material: 85% Polyester+15% Spandex. Elasticity and Breathability, Our custom design and silk-like feel are a second skin without the worry of possible irritation or chaffing. Ultra soft fabrics are great for sports that require quickness and agility. Fleece lining design is soft and comfortable to keep you warm in cold weather. The benefit of a compression layer ensures that your muscles are engaged, your body temperature is regulated. Sports shirt with lightweight, breathable, and super soft fabric. Moisture-wicking, rapid absorption and volatile sweat, quick dry, keeps you dry and comfortable. Great for a day of running, fishing, sailing, hiking, rowing, surfing and any other of your favorite sports. The logo ??COOLOMG?? on the shirt can be reflected under low or poor lighting conditions, this will enhance the safety of night motion. Special back collar design: Comfortable and wearless skin. Flat-lock seams provide comfort. COOLOMG Care Plan: We commit that we will be responsible for all the Quality problems within 90 days (Damage is caused by man-made or exterior influence are NOT Included). Machine washable at 30 degrees, hand wash in cold water recommended. We recommend that you’d better to wash them before the first wear. If you have any questions, please feel free to contact us.