WXP 3L Storm™ Valve Hydration System


Select Color

  • Black
  • IRR Coyote
  • IRR Foliage
  • Olive


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Storm Valve Hydration System

3L / 100 oz


High performance 3L hydration reservoir system. Exclusive 3 layer coextruded Polyethylene construction with Taste-Free™, low maintenance, Glass-Like™ liner. Integrated Grunge-Guard™ antimicrobial.

  • Patented leakproof wide slide opening for easy cleaning, draining, ice insertion.
  • Tube Cover Insulates and blocks UV-light. Water stays cool and bacteria free from first to last sip. Your choice Black, Olive, IRR Coyote or IRR Foliage.
  • QMT™ Source Quick Mate Technology hose fitting offers push button convenience, no leakage, offers click-in compatibility with USMC Miox filter system.
  • Patented push/pull Storm Valve™ requires no biting, delivers 25% higher flow than bite designs. Integrated valve shut-off.
  • Dirt Shield™ valve cover.


For the WXP Care and Use instructions click here.

Dimensions WXP 3L:


  • Length 17”/43 cm
  • Width 8”/20.5 cm
  • Max. Depth 1”/2.5 cm


  • Length 16”/41 cm
  • Width 5.9”/15 cm
  • Max. Depth 3.7”/9.5 cm


Liquid Capacity: 3L/ 100oz
Cargo Capacity: N/A
Weight (pack + reservoir): 0.24kg/0.53lbs
Hydration System: WXP™
Reservoir: 435 micron co-extruded Glass-Like™ PE
Valve: Angled Storm-Valve™
Tube: Tube Cover 94cm/37in long

Hydration features

  • Taste-Free™ System- Glass-Like™ Liner technology in reservoir and tube delivers pure liquid taste with no plastic flavor.
  • Bacteria-Free™ System- Grunge-Guard™ Antimicrobial technology blocks bacterial growth for the life of the system.
  • Care-Free™ System- Glass-Like™ Liner with Grunge-Guard™ antimicrobial technologies eliminates the need for cleaning. For days, weeks and even months of use simply refill and drink again and again with no special care required.
  • FDA Approved Materials- All materials in contact with the drinking water are FDA approved. Guaranteed safe and taste-free drinking water.
  • Hi-Flow Storm-Valve™- No-bite push-pull valve with an integrated shut-off mechanism. Like drinking from a straw with easy disassembly for cleaning. (U.S. Patent 6,622,988).
  • Angled Valve- Turns 360 degrees for perfect valve/mouth orientation. Allows tube to be 25cm shorter. Less excess tube bouncing around on the chest!
  • Dirt-Shield™ Protective Cover- No more dragging in the dirt! Keeps valve free of dirt and protected during transport.
  • Tube Cover - Insulates and blocks UV-light. Water stays cool and bacteria free from the first to last sip.
  • Widepac™ Wide Opening Access - Patented slide closure for easy filling, draining and cleaning. Airtight Seal! (U.S. Patent No. 7,648,276,B2)
  • QMT™ Quick Connect Hose Fitting- Quick connect hose fitting offers push button convenience, QMT™ has a built in shut off mechanism which allows the tube to be disconnected without spilling, and is compatible with most filtration systems and accessories, such as UTA™.
  • Integral Refill Handle- For fast and easy refill with no spills
  • Large NC Filler Cap- Air tight, low profile one hand operated. Compatible with commonly used personal filtration systems.


To learn more about our hydration technology visit:


For other languages click here.



Rating And Reviews

Based on 7 reviews

Written by: ISAO SOTOYAMA on 2011-06-02

WXP 3L Storm Valve I bought from Japan.
I'm used to running and trekking, is satisfied with a very good product.
Delicious taste of the water unchanged compared to products from other manufacturers.
SOURCE, Inc. continues to use the product.
I was satisfied with customer service.

Written by: Danny H. on 2011-06-06

the best I ever used!

Written by: michel delaplace on 2012-01-26

bonjour je fais beaucoup de rando jai testé plusieur poche hydratation je suis surpris de la qualité de la poche wxp 3l notament ele ne dégage aucun gout de plastique ou autre c'est un matériel trés fiable sur lequel on peux compté de plus elle à tous ses axessoires superbe matériel pour moi le meilleur

Written by: Mike Bardill on 2012-02-24

Best system I have ever used! Even managed to use it as an standby shower whilst trecking in the Negev and Jordan. This really is top quaility gear.

Written by: Wachlan on 2013-04-23

great reservoir, easy to use and very practical. Really like the lack of maintenance needed.

Written by: Guest on 2013-05-10

I won't ever use anything else! I was amazed how fresh/clean the water tasted, even after being in it for 2 days.

Written by: Guest on 2014-05-01

U.S. Border Patrol Agent, use the source bladders 10 hours per day 5 days per week. Doesn't taste like rubber or plastic, drinking valve puts out enough water unlike the bite valves, and the bag is thicker and way better than camel bak. Wish source made a 4 liter &5 liter. Best bladder on the market, I've tried em all..