Camelbak Thermobak 3L 100oz Military Hydration Pack
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Our battle-tested original, continuously improved and upgraded over the last two decades.

More than just a reservoir, the Mil Spec Antidote Reservoir redefines the ultimate delivery system for an operator’s water supply and provides maximum adaptability for changing missions or combat environments. Includes our Quick Link Exit Port and QL HydroLock Bite Valve Adapter: tube clicks off for faster refilling with auto shut-off; new fillport: industry’s largest opening with air-light ¼ turn open/close for quick, secure seal that can’t be over-tightened; lighter-weight, lower-profile design.

Improved fold-down fillport cover stays out of the way during re-filling; Quick-release shoulder straps unclip for easy removal and storage inside back panel stash pocket; Use D-ring attachment points to add to any armor vest or pack with MOLLE; Fully-insulated reservoir compartment using 5 mm closed cell foam; Add or remove name tags and unit badges quickly with integrated hook-and-loop; External fill for rapid refill without having to remove reservoir from pack; 500D Rip-Stop Cordura Fabric

If we built it, we'll Bak it with our lifetime guarantee.

Easy Return Policy

Extended Holiday Return Policy

Items Purchased after October 5th 2016 are eligible for return until January 31st 2017.

If, for whatever reason, you are not satisfied with your purchase, you can return it to HRM USA within 45 days of purchase date subject to conditions below. Claims for items damaged in transit must be received within (3) business days of receipt of merchandise. Items deemed defective by manufacturer standards must be reported within 7 days of receipt.

Refunds & Credits Refunds on returned items will be issued to the same payment as tendered at the time of purchase. Once we receive and inspect the product you will be issued a credit back to your account. Please allow 5-7 Business days for a credit to appear on your account. If payment was made by check, the refund check will not be issued within 7- 10 business days after receipt of return.

No Return/Exchange
on the following:

– Hydration Packs, Water Bottles once any of the packaging has been opened or safety seals have have been broken.

– Computers and Computer Software, once any of the manufacturer's packaging has been opened.

– Heating Pads, once safety seal has been broken

– Electronic Software is not returnable or refundable once opened.

– All consumable items or hygienic items (e.g., Gels, Energy Chomps, Elixirs, etc.) once unwrapped or seal broken.

– Special Order merchandise, Clearance, or any itemindicated on the website as non-returnable.

– Imprinted products.

– HRM USA Stores Gift Cards are redeemable for merchandise only and may not be redeemed for cash.


If the item is returned to us for exchange, please allow 2-5 business days for the replacement to be processed and shipped. All returns are shipped with our Economy shipping method and arrive within 2-10 Days.


Please read all conditions below. If conditions are not met, HRM USA reserves the right to refuse the return or to charge a restocking fee not less than 10% or a $2.95 minimum restocking fee charge.
If using a shipping label generated by HRMUSA Inc, the cost of this label will be deducted from refund amount (unless product is defective).

All returned items must be in new condition, in their original unaltered box (including the UPC code being intact) and must include all packing material, blank warranty cards, manuals,and accessories. Defective items may be exchanged for the same model or manufacturer's equivalent model. Please call us at 800-403-8285 for assistance. Please allow time to discuss any issues you may be experiencing as we may recommend tech support to resolve any issues prior to exchange. Any refused package will be assessed shipping charges incurred by the carrier.