FSTSinglet is a clean cut, ready for anything run day essential. utilizing the same fully recycled, lightweight, quick dry COOLmatic | PLUS MIKRAmesh™ mesh knit found in our premium headwear, coupled with cooling and anti odour technologies for long run use. reflective details keep you lit from dusk to dawn. engineered side vents, keeps things nice and breezy. flatlock stitching and critical welding alleviate much maligned chafing and elevate this everyday piece of run equipment to premium status.