I have never used them, but they have some wrinkles from being stored at home. High-performance Under Armour arm sleeves, white set, perfect for sports. Made of lightweight and stretchy material. Moisture-wicking technology keeps athletes' bodies dry, and UPF50 protects athletes from UV rays. Compression fit wraps muscles and reduces unnecessary vibrations. ・UPF50 sun protection (recommended by the Skin Cancer Foundation) ・HEATGEAR ARMOUR: Keeps you cool and comfortable even in hot weather with moisture-wicking and stretchy fabric, keeping your body dry ・UPF50 ・Set of 2 UV protection, UV cut, unisex 【Size】 Length 43cm, Upper width 12.5cm, Cuff width 8cm Thank you for viewing.