Designed with both durability and convenience in mind

At 3½" x 2½"

and an internal water bottle pocket

(complete foldout) the system with this medical pack to be built as the most efficient on the market

Accessory Mounting Points: Add pouches

Hydro Flask 45 oz Wide Mouth with Flex Straw Cap Bike Patrol Designed with both durability andHydro Flask 45 oz Wide Mouth with Flex Straw Cap A 40 oz Wide Mouth water bottle with our leakproof Flex Straw Capeasy to fill, easy to drink. Open it up, add your ice, and flip to sip. The insulated stainless steel keeps it cold for up to 24 hours. 24 hours cold TempShield double wall vacuum insulation Leakproof when closed Pure taste with no flavor transfer Wide Mouth opening is ice cube friendly Bottle fits most backcountry water filters BPA Free