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Osprey know the need for hydration when riding and have equipped the Viper 13 Hydration Pack with an integrated 2.5L Hydraulics™ LT Reservoir, accessed via an assymetric zip for simplistic refilling and 2 chevron baffles to maintain shape, resulting in efficient drinking capability. Osprey have also placed a magnet on the sternum strap and bite valve, securing the hose to the pack when not used and allowing it to be easily accessed when needed.
For long-term comfort, the Viper 13 features a ventilated AirScape™ back panel with BioStretch™ harness evenly distributes airflow throughout the back, especially in warmer conditions whilst offering unrestricted flexibility for movement.
Additional features of the Viper 13 include Osprey's unique LidLock™ technology which creates a secure attachment for helmets, internal compartments to store gear and bike tools and compression straps to push down bulkier loads.
Osprey have finished the Viper 13 with reflective graphics and an LED light attachment, making it safe for you to ride long into the night.
We will happily refund any item purchased on Wiggle if returned to us within 365 days; excluding Wiggle gift vouchers, nutrition and customised products, except when faulty.
Please note: Bikes and other bulky items cannot be returned using our local returns service (where applicable). Please contact us and we can arrange to collect these from you using our discounted courier rates. There is a fee for all collections, except for faulty products.Returned goods must be unused and supplied with their original packaging, unless the goods are faulty. Wiggle will pay the return postage costs for any faulty items.