FEATURES Upgraded lightweight hook and loop sternum adjustability Two rear zippered stash pockets for optimal safety and organization Small weather resistant pocket on Shoulder strap for chapstick, tablets, and small essentials Comfort Cinch™ 2.0 - more minimal, lightweight, and adjustable Shoulder strap shaping to promote weight distribution and comfortable fit Lightweight 4-way stretch with rip stop pattern for added durability Front stretch mesh pockets are phone compatible Corded elastic for external gear stash and overall compression Large back pocket can hold up to a 2 liter reservoir Never used. Bottles not included. Size S/M