A new universal and dynamic fit that wraps completely around the torso for a more secure vest-like fit; Soft recycled monomesh liner is lightweight, breathable, and strong for next to skin comfort; Includes 2 HydraPak Body Bottle 500's with bungee loop bottle holders to keep bottles up and in place as you drink; Added air mesh panels behind bottle pockets offer extra comfort and chafe protection as the miles tick by; 2 large zippered ripstop chest pockets are water and sweat resistant, and large enough to accommodate most phones; 2 lower front stretch mesh shove-it pockets; Includes four removable bungee loops with hooks to attach trekking poles; loops can be attached at front or back of vest for customizable trekking pole carry options; Front buckle static sternum straps give bounce-free stability for larger loads, and hook attachment lets you customize placement and fit; Large water resistant rear compartment with clamshell opening; Stretch back passthrough pocket is large enough for layers and accessible from both sides while wearing