High-quality materials: Our Cooling Arm Sleeve This sunscreen cooling arm sleeve with thumb hole features a seamless design and a highly durable 90% cotton, 10% spandex material. The fabric is highly breathable, dries quickly, and keeps the skin cool as well as high stretch, making it suitable for men, women, and children.Versatile: Whether you're spending a lot of time in the garden, working out at the gym, or just walking outdoors on a sunny day, our men's UV protection covers can be used for any occasion and protect your arms from the potential damage of the sun's UV rays.UPF 50+ Sun Protection: Our men's and women's UV protection armbands block more than 98% of the sun's harmful UVA and UVB rays, providing comprehensive UPF 50+ coverage. These men's and women's sun sleeves are perfect for protecting yourself from the sun on a hot day...Whether you're playing golf, basketball, baseball, volleyball, running, or cycling.USE TIP: These sunscreen sleeves are made from quick-drying fabric that is built to last, so simply rinse with cold water and hang to dry after use!Design with thumb holes: Made from lightweight fabric, these armbands are comfortable and breathable to keep you cool while wearing them, while also having thumb holes so you won't miss a beat when gardening or working outdoors