Fabric is fabric, and UV protection is minimal if it's not lined with proper UV treatment before hand. Make sure your face buff is truly UV protected. UV rays will penetrate normal fabric like hot knife through butter. Colors of fabric will reduce some of the UV from penetrating, but you're still toast by the end of the day. Wonder why you have the same feeling as if you're sun burnt, yet, there's no visible sunburn on your body? UV effects at their finest. Depending on how long you area out there, UV rated treatment on clothing should be closely noted. If you're washing the cloth with UV treated on a regular basis, I can surely bet you that after 10 washes, the UV impregnated material is half effective..then half of that..then half of that after repeated washes.