Premium Fabric - Breathable, moisture wicking, soft, lightweight and quick drying for cool comfort. Chafe-Free Comfort & V-Neck Design : Flat lock seams and no tag collar minimize friction and offer great comfort. UV Protection - Our sun protection shirts are made from UPF 50+ fabric, which it can block harmful UV rays during outdoor activities. It can protects your sensitive skin and provides all-day comfort to you. Thumb Holes Design - Our long sleeve shirts come with thumb holes on the cuff, they can keep the sleeves in place so that your skin can be protected perfectly. Suitable Occasions - Our workout shirts can match up with a variety of different styles of your pants and shoes. It's perfect for all kinds of outdoor activities like cycling, fishing, jogging, running, surfing, hiking, etc.