The opening decides whether it dries; the liters only decide weight · review
The same two shut-offs and the same cap as the three-liter Crux, with an ergonomic fill handle the larger one does not list — and the flow claim left without the number the 3 L gives it.
A 2 liter Crux reservoir, 70 oz, blue.
CamelBak states high-flow hydration delivering more water per sip; a leak-resistant cap that is easier to open and close and reduces leaks during filling and transport; an on/off lever control to shut the drinking tube with one hand while moving or packing; a self-sealing bite valve that seals after each sip; and an ergonomic fill handle designed for easier lifting and refilling at water sources or sinks.
No bore. No port width. No quick-disconnect. No film named. No cleaning method. No weight.
What separates the two Crux listings here.
This one publishes the fill handle. The 3 L does not mention one.
The 3 L quantifies the flow claim at 20 per cent more water per sip. This one says high flow, with no figure.
Everything else on both pages reads the same, and the same seven of this shelf’s eleven columns are blank on each.
Two liters of water is floppy.
A full reservoir has to come out of a pack, go under a tap and come back to the pitch. One hand is all that is usually free.
This shelf’s introduction also asks that the fill port suit the tap or bottle you fill from. No port width is published, so that half stands open.
No quick-disconnect on either Crux.
This shelf’s introduction is specific about the cost: without a connector at the reservoir, refilling means threading the tube back through the pack every time, and drying means working around an attached hose.
Four of the eight American listings on this shelf state a detachable connector. Two of those seal themselves when the hose comes away.
The American Amazon store was listing it at about $30 at the time of writing.
Every figure here is what Keepa held on the day this page was last revised. Offers and prices shift without warning.
Prices quoted in this text were read on October 8, 2026. The live price is at the top of the page.
| Capacity | 2 L — stated, and given also as 70 oz. The smaller of the two Crux reservoirs in this group, at ten dollars less than the 3 L |
|---|---|
| Opening type | A leak-resistant cap, stated to be easier to open and close and to reduce leaks during filling and transport. The type is not named beyond cap, and no reversibility is claimed |
| Fill port width | Not published as a figure, but an ergonomic fill handle is stated — designed for easier lifting and refilling at water sources or sinks. The 3 L listing in this group does not mention one |
| Hose internal diameter | Not published, on a listing whose first bullet is a high-flow claim |
| Bite valve | A self-sealing bite valve — stated, sealing automatically after each sip to eliminate drips on the trail |
| Shut-off | An on/off lever that shuts the drinking tube with one hand — stated, to prevent spills while moving or packing. At the tube rather than the mouthpiece |
| Quick-disconnect fitting | Not published. No detachable connector at the reservoir is described |
| Film material | Not named. No polyurethane, TPU or EVA appears, and no wall thickness is published |
| Seam construction | Not published |
| Stated cleaning method | Not published. No brush, no reversibility and no dishwasher claim |
| Empty weight | Not published |
| Amazon reference | B01LA5F9X6 |
| EAN | 0886798004563 |
A liter, ten dollars, and one listed fitting each way. This 2 L publishes an ergonomic fill handle for lifting and filling at a sink or a stream, which the 3 L listing does not mention; the 3 L puts a number on the flow claim — 20 per cent more water per sip — which this one leaves as high flow with no figure. Everything else reads the same: a leak-resistant cap, a one-handed lever that shuts the tube, a self-sealing bite valve, and no bore, no film material, no cleaning method and no weight on either. Choose on the liters, and on whether 70 ounces covers your day.
More than it sounds, if you fill from streams and shallow taps. A full two-liter bladder is a floppy two kilograms, and the handle is what lets you lift it out of a pack, hold it under a tap and carry it back to the pitch with one hand. This shelf's introduction notes that the fill port has to suit the tap or bottle you actually fill from; the handle is the other half of that problem. What the listing does not give is a port width, so the first half is still unanswered.
The listing does not say so, and that is the one structural gap on both Crux listings in this group. This shelf's introduction explains why a quick-disconnect at the reservoir matters: without one, lifting the bladder out to refill means threading the tube back through the pack every time, and drying means working around an attached hose. Four of the eight American listings on this shelf state a detachable connector, two of them with an automatic shut-off so the reservoir stays filled when the hose comes away. Neither Crux is one of them.
Close prices, same category: comparable camping gear. We keep only the specifications all of them publish, because a column with gaps compares nothing.
| Model | Price | Capacity | Opening type | Fill port width | Hose internal diameter |
|---|---|---|---|---|---|
| CamelBak Crux 2L | $30 | 2 L — stated, and given also as 70 oz. The smaller of the two Crux reservoirs in this group, at ten dollars less than the 3 L | A leak-resistant cap, stated to be easier to open and close and to reduce leaks during filling and transport. The type is not named beyond cap, and no reversibility is claimed | Not published as a figure, but an ergonomic fill handle is stated — designed for easier lifting and refilling at water sources or sinks. The 3 L listing in this group does not mention one | Not published, on a listing whose first bullet is a high-flow claim |
| CamelBak Crux 3L | $40 | 3 L — stated, and given also as 100 oz. The larger of the two Crux reservoirs in this group, where the other is 2 L and ten dollars less | A leak-proof cap, stated to be easier to open and close and tightened so it will not leak in a bag. The type is not named beyond cap, and no reversibility is claimed | Not published. The reservoir is stated to be easier to load and refill, with no figure | Not published. Fifteen of the seventeen listings on this shelf publish no bore, and this is one of them — on a listing whose main claim is about flow |
| HydraPak Contour 2L | $40 | 2 L — stated. The smaller of the two HydraPak reservoirs in this group; the Force beside it is 3 L | A Slide-Seal top — a full-width slide closure, stated as updated, carrying a universal pack hanger designed to work with clips, hooks and loops from a variety of pack brands. It is the opening type this shelf's introduction prefers, because it can be turned back | Not published as a figure. The Slide-Seal is a full-width opening rather than a port, so the width is the width of the reservoir | Not published |
| Baen Sendi 201801 | $16 | 2 L each, stated as 70 oz, with two reservoirs supplied — one blue and one army green. The title also lists 1.5 L, 2.5 L and 3 L as available sizes without saying which is in the box; the bullets describe the 2 L pair | A screw-on cap, stated to go on and off easily, with a large opening for pouring and for admitting a hand or a bottle brush. This shelf's introduction notes that a screw cap cannot be turned back on itself and hung flat | 4 in — stated for the screw-on cap. It is the widest fill port published on this shelf; the sibling listing in this group that shares this page’s wording states 3.5 in | Not published — although the two listings in this group that share this page’s wording both publish 0.4 in. The template was edited here and the bore was dropped |
A day walk or a ride where two liters is enough and the reservoir has to be lifted and filled one-handed
Amazon reports what buyers took in the month before this page was last checked: at least 2,000.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Specifications: the manufacturer sheet for camping and hiking gear and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
2 L reservoir · large opening, type not named · hose supplied · almost nothing else published
A 2 liter reservoir sold with a hose, whose listing publishes the capacity and then almost nothing else — no opening type, no film, no valve, no fittings and no weight.
Best for: A replacement reservoir where the pack sleeve is the only constraint and the details are worked out on arrival.
3 L reservoir · two hoses, summer and winter · cleaning brush included · opening type not named
A 3 liter reservoir that ships with two drinking hoses and a cleaning brush — three items other listings sell separately — while naming neither the opening, nor the film, nor the valve.
Best for: Someone who wants the brush and the winter hose in the same box and will find out about the opening on arrival.
Two 2 L reservoirs, 70 oz each · 4 in screw cap, the widest port stated here · bite valve with on/off · quick-release with auto-lock · a neck gaiter supplied · no bore, no film named
Two complete reservoirs for sixteen dollars, with the widest fill port stated on this shelf at four inches — on a page whose wording appears under two other brands in this same group.
Best for: Two people, or a spare kept filled in a fridge, where price per reservoir is the whole decision
≈ $16
