Explore remote outdoor locations and stay hydrated with the CamelBak Antidote Reservoir. This portable and self-contained hydration system easily fits into most backpacks, and its 38"-long delivery tube provides easy access to your water supply when you' re on the go. Its unique design features three points of liquid flow control. The first one is an on/off valve, located at the base of the bag, useful for sealing contents during transport. The second is the Ergo HyrdroLock, which shuts down the flow in the event of accidental pressure on the bag during strenuous activity. Third is the Big Bite Valve, located at the tip of Pure Flow delivery tube, which allows you to control the flow of water while you are drinking. The silicone mouthpiece is soft to bite, and auto-seals as soon as you release it, allowing hands-free operation and preventing leaks and drips. Just gently squeeze the mouthpiece, and the internal valve will open to allow the flow of water when you need it.

A Quick-Snap Cap with o-ring securely closes and seals the bag with a quarter turn. The wide diameter opening makes filling, cleaning and drying the bag quick and easy. The bag also features a low-profile integrated hanging hook that allows you to secure it in your backpack or hang it for storage.

This Antidote Reservoir is 100% free of harmful Bisphenol A (BPA) and Bisphenol S (BPS).

CAMELBAK Antidote Reservoir (50 fl oz / 1.5 L, Blue)

SKU: C-90761
  • Flow Control

    • HydroLock Valve helps to conserve water during harder, more strenuous tasks
    • Hands-free Big Bite Valve allows controlling flow during drinking
    • Tethered Quick-Snap Cap with o-ring closes with a quarter turn

    Construction Details

    • Polyurethane construction
    • 38" Pure Flow delivery tube allows easy access
    • Integrated low-profile hanging/security hook
    • Materials are 100% free of harmful BPA and BPS

    CAMELBAK 90761 Specs

    Capacity 50 fl oz / 1.5 L
    Material Polyurethane
    Dimensions Empty: 11.5 x 7" (29.2 x 17.8 cm)
    Filled: 11 x 6 x 2.5" (29.7 x 15.2 x 6.4 cm)
    Tube length: 38" (96.2 cm)
    Weight 6 oz (170 g)

Opening Hours


9am - 5pm


9am - 5pm





705 - 444 - 5488



15 Balsam  Street, Unit 2

Collingwood, ON L9Y4H6


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