Thirty48 Compression Arm Sleeves with S.Caf&eacute;&reg; Fabric, Pain Relief, Recovery (1 Pair) Fast Drying - The S.Caf Fabric absorbs sweat quickly and diffuses moisture efficiently. Faster drying than other type of materials such as Poly fabric and Cotton fabric. Odor Control - The S.Caf Fabric prevents most odors and allows comfort and confidence in wearing. UV-Protection - Provides UVA & UVB protection with its ability to diffuse and refract UV radiation. UPF testing shows that S.Caf fabric has a UPF rating almost 3 times that of normal Cotton fabric. Eco-Friendly - S.Caf fabric is produced from coffee processing byproduct with energy-conserving methods, bringing use to a material otherwise thrown out. Ice Cool Touch - S.Caf ICE-CAF can cool down the skin temperature about 1 to 2 C more than ordinary fabrics by integrating nano-size crystal into textile weave, keeping you dry and comfortable.