Zensah Compression Arm Sleeves 94% Nylon, 6% Spandex Made in US Compression Improves Muscle Recovery and Helps Injury Prevention: Compression helps with improving blood flow and reducing Delayed Onset Muscle Soreness (DOMS) after hard workouts. It also helps to stabilize the arm muscles to prevent injury. Both Solar and Cooling Arm Sleeve: While other arm sleeves designed for golf and outdoor sports are either a solar or cooling sleeve, the silver ions in our innovative fabric provides both UPF 50+ sun protection and thermal regulation to keep arms cool. Moisture Wicking and Anti-Odor: Made of innovative Zensah fabric, the compression arm sleeves will stay smelling great through your workouts. The sleeves are moisture wicking, ensuring they stay dry and lightweight even under the harshest conditions. Made for Athletes: Our compression arm sleeves are made in the USA and designed to last. They have been tested on elite athletes to ensure they withstand the toughest workouts. The sleeves won't lose their shape or elasticity thanks to innovative fabric. Comfortable: The arm sleeves are made of a seamless material and are tag-free to prevent chafing and discomfort. Also, the sleeves are made of Zensah fabric which is ultra-lightweight and breathable. Compression Improves Muscle Recovery and Helps Injury Prevention: Compression helps with improving blood flow and reducing Delayed Onset Muscle Soreness (DOMS) after hard workouts. It also helps to stabilize the arm muscles to prevent injury. Both Solar and Cooling Arm Sleeve: While other arm sleeves designed for golf and outdoor sports are either a solar or cooling sleeve, the silver ions in our innovative fabric provides both UPF 50+ sun protection and thermal regulation to keep arms cool. Moisture Wicking and Anti-Odor: Made of innovative Zensah fabric, the compression arm sleeves will stay smelling great through your workouts. The sleeves are moisture wicking, ensuring they stay dry and lightweight even under the harshest conditions. Made for Athletes: Our compression arm sleeves are made in the USA and designed to last. They have been tested on elite athletes to ensure they withstand the toughest workouts. The sleeves won't lose their shape or elasticity thanks to innovative fabric. Comfortable: The arm sleeves are made of a seamless material and are tag-free to prevent chafing and discomfort. Also, the sleeves are made of Zensah fabric which is ultra-lightweight and breathable.