The Single layer Tube Facemask from BlackStrap a lightweight, multi-functional piece with multiple wearing applications. 
A single layer of Quad-Stretch Fabric has a 97.5% UPF rating, blocks out 97.5% of harmful UV rays.
100% Lens safe and breathable, use to clean you goggles & limit moisture & fogging
All BlackStrap Facemasks are 100% Made in the USA with domestically milled fabric.