The Spry 2.0 has the same fit and shape of the original Spry, but gets numerous upgrades: patent-pending Max O2 Sternum??? (A hook-type attachment system with enhanced recoil for better range of motion, and quick in and out. Allows for easy breathing; adjust once and lock it down to eliminate further fuss even when taking off and on.), dual lower front elastic mesh pockets perfect for bottles or energy foods, a hidden sweat-proof pocket inside lower mesh pocket, enlarged zippered essentials pocket on upper left shoulder strap, sweat-proof Magnon Electrolyte Pocket??? on upper shoulder strap to keep tabs and pills dry and many more.