Features: Dual-zippered panel access to main compartment Lower side compression straps secure your load Large stretch-mesh front panel pocket; top panel zippered stash pocket; side stretch-mesh pockets Adjustable bungee front panel storage Dual zippered fabric hipbelt pockets secure small essentials Easy-access, expandable stretch-mesh harness pocket helps you keep your climbing harness handy External hydration sleeve (hydration reservoir not included) helps you stay hydrated Stow-on-the-Go trekking pole attachment keeps your poles at the ready Includes a tuck-away ice axe attachment with bungee tie-off LidLock bike helmet attachment keeps your headwear on hand Blinker light attachment (light not included) lets you add visibility to your kit EF sizes feature extended hipbelt and shoulder straps and repositioned pockets