Co-designed with Ryan Van Duzer, a prominent long distance bike packer and cycling powerhouse, this ultralight multi-sport hydration pack was developed with one mission; to go to the ends of the earth faster, further, and lighter; all while staying organized with the essentials and hydrated with the included 2L hydration bladder. Increase the carry functionality by taking advantage of compatibility with our Zerk 3L Loki Lumbar pack which acts as a chest rig on the Zerk 13 shoulder straps! Utilizing High Tenacity ROBIC Nylon with super durable Ultra High Molecular Weight Polyethylene (UHMWPE) ripstop, the Zerk 13 liter pack will be your best friend and greatest asset for whenever your adventures find you on two wheels or two feet.

• 9" x 18" x 5" (L x H x D)
• Large main compartment panel loader holds up to 13 liters of gear with internal organization sleeves
• 2.0 L TSI water bladder included (BPA, PVC & Phthalate-Free) with backpanel hose port and magnetic hose clasp
• Extra wide, Airflow EVA padded shoulder straps with dual adjustable sternum straps
• 4 Large mesh front pockets on shoulder straps; accommodates 500ml bottles & cellphones
• 1.5” padded waistbelt with dual zippered stash pockets