This is a new Tipperary Ride-Lite Vest in a size TS (34-38" chest, 28-32" waist, 20-22" spine).

Made for the beginner or recreational rider. 

The short-backed style allows for a greater range of motion. Note that the shorter back length does not provide tailbone coverage.  A four-way twist molded channel system allows for better air flow and a close fit.