we started from scratch on the design of the FSTTight. consider this version 2.0, a definite upgrade built to be your favourite. it all starts with our new COOLmatic | PLUS KLOSfit™ fabric. compressive, cooling, and just right. no chafe comfort by way of merrow stitching throughout, and a silicone backed daisy chain elastic at waist holds that singlet you’ve taken off or your fuel of choice for those longer runs. integrated cargo pockets allow for “no bounce” carry of larger objects like phone or wallet for that pre run meet up with friends. for those of you on the search for a tight like this, but shorter, this thing is trimmable.