So light, you may not even know you’re wearing a shirt! Guaranteed to be the lightest weight layer you've ever owned. Clocking in at 65 gsm, this thing breathes and dries like crazy! This fabric is super lightweight. It will perform and last through any regular wear or wash/dry cycle, but will not survive pilling or a big wipeout as well as other products.
 
Because this fabric is so light, it is very transparent, which is why it is only offered in select colors. 
 
Blocks ~94% of the sun's UV Rays.