About this item Go The Distance: This upgraded, lightweight running vest features high performance materials, customizable fit and smart storage options for longer miles. Designed specifically for both women and ultra-running Customized Fit: Comfort Cinch 3.0 features an adjustable, lightweight cord system that ensures a secure fit for all body types and is accessible even when the pack is on Lightweight & Breathable: The breathable air-mesh back panel prevents chafing and does not absorb moisture keeping the pack light and dry. A narrower cut in the shoulder straps and back offers a more tailored fit for smaller body frames Feature Rich: Back storage features one main zippered compartment with space for up to 2.0L reservoir as well as 2 smaller zippered pockets. Front storage includes 2 bottle pockets. 2 mesh drop in pockets for nutrition or other smaller sized items. Dedicated water-resistant phone pocket at chest. Waterproof stash pocket at shoulder. 4 hook and bungee loops to attach trekking poles front or back. 2 adjustable T-hook sternum straps Specs: Capacity: 10.1 L (7.1 L Secured). Weight(w/out Bottles): 7.8 oz. /220 g. Two 500ml Body Bottles included. 2.0 L Hydration bladder compatible See less