
Why? Because cover provided depends (amongst other things) on the fabric used. Tightness of the weave, weight, fibres used and colours all have a bearing on how effective a garment is at keeping out harmful rays.
Ultraviolet Protection Factor (UPF) is a scale developed to rate protection provided by fabrics against solar ultraviolet radiation (UVR) and is comparable to SPF for sunscreens.
With an Ultraviolet Protection Factor (UPF) 50 guarantee, Second Skins Sun Protection garments ensure 50 times the protection against UVR compared to unprotected skin.
In real terms, this means that only 2% of UV rays can penetrate the fabric, thus radically reducing exposure and possible sunburn.
Safer sun hour after hour with Second Skins Sun Protection - but don't forget to apply a good quality high SPF factor sun cream to exposed areas.