Healthy of Sun Block and Blocking Fabric

This fabric by using UV-Cut fiber could isolate UV ray and reduce thermal transmission to provide excellent skin protection and comfortable cool performance : UV-Cut

This high tech fiber could withstand long term using and washable. The amount of Ultraviolet Protection Factor (UPF) indicates the time length of a garment protects from solar radiation. For example, a garment with UPF 1 that means wearer will be protected from sunlight for about 10 minutes. If you are wearing a garment with UPF 20 that means you can stay in the sun for 200 minutes (Approx. 3 hours) without problem. Therefore the people who need to stay outdoor whole day may need to wear UV-Cut functional cloth which can meet UPF 40. more sun blocking fabrics

UV-Cut fabric has 3 ratings of UV-cut hang tag, based on different UPF rating (as the table below), due to fabric structure / cover rate will affect fabric UV-Cut ability.

ref : http://www.sportingtex.com/sun_block_fabric.html