The opening decides whether it dries; the liters only decide weight · review
The only reservoir in this group to put a number on its flow claim — 20 per cent more water per sip — with a one-handed lever that shuts the tube and a bite valve that self-seals.
A 3 liter Crux reservoir, 100 oz, blue.
CamelBak states that the reservoir offers 20 per cent more water per sip; a leak-proof cap that is easier to open and close and tightened so it will not leak in a bag; an on/off lever that seals the drinking tube shut with one hand; and a big bite valve that self-seals after each drink to eliminate drips. The description adds durable leak-proof material that is BPA-, BPS- and BPF-free, and an ergonomic shape for discreet storage in a bag.
No bore. No fill port. No quick-disconnect. No film named. No cleaning method. No weight.
Twenty per cent, against an unnamed baseline.
The 2 liter Crux on this same shelf says more water per sip and gives no figure. The same advantage, quantified once out of twice.
What would make it comparable is the figure this shelf’s introduction asks for: a hose internal diameter. Neither Crux publishes one, and fifteen of the seventeen reservoirs on this shelf do not either.
A valve that seals, and a lever that closes the line.
The bite valve self-seals after each sip, so it does not drip while you walk.
The lever shuts the tube with one hand, so a valve pressed by a strap, a car seat or a duffel lining delivers nothing.
This shelf’s introduction names the shut-off as what stops a pack soaking itself in transit. This has both halves of it.
The subject this shelf’s buying tip puts first.
No brush. No reversibility. No dishwasher claim.
One listing on this shelf states a dishwasher method, and it is a different brand in this same group.
No quick-disconnect either, so the hose stays on the reservoir while you brush it.
The American Amazon store was listing it at about $40 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 | 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 |
|---|---|
| Opening type | 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 |
| Fill port width | Not published. The reservoir is stated to be easier to load and refill, with no figure |
| Hose internal diameter | 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 |
| Bite valve | A big bite valve that self-seals after each drink — stated, with the elimination of drips given as the reason |
| Shut-off | An on/off lever that seals the drinking tube shut with one hand — stated. It is at the tube rather than the mouthpiece, which is what stops a pack soaking itself in transit |
| Quick-disconnect fitting | Not published. No detachable connector at the reservoir is described, so the tube is not stated to come away for filling or drying |
| Film material | Not named — the listing states high-quality, durable, leak-proof material that is BPA-, BPS- and BPF-free, and names no polyurethane or TPU. No wall thickness is published |
| Seam construction | Not published |
| Stated cleaning method | Not published. No brush, no reversibility and no dishwasher claim appears — where the HydraPak Force in this group states top-rack dishwasher safe |
| Empty weight | Not published |
| Amazon reference | B01LA5FCJ2 |
| EAN | 0886798002415 |
The listing does not say, and that is the weakness of an otherwise good claim. It is the only quantified flow statement in this group — the 2 liter Crux beside it on this shelf says only more water per sip with no figure, which is the same advantage left unmeasured. The likeliest comparison is CamelBak’s own previous reservoir generation rather than anything on this shelf. What would settle it is the figure this shelf's introduction asks for: a hose internal diameter, which sets how hard you have to draw. Neither Crux listing publishes one.
It shuts the tube rather than the mouthpiece, which is the difference between a dry pack and a wet one. A self-sealing bite valve stops drips while you walk; a lever at the tube closes the line, so if the valve is pressed by a strap, a car seat or the inside of a duffel, nothing comes through. This shelf's introduction names a shut-off as what stops a pack soaking itself in transit, and this listing has both: the lever, operable with one hand, and a valve that seals itself after each sip.
The listing does not say, which on a three-liter reservoir is the gap that matters most. There is no brush, no statement that the reservoir reverses or turns inside out, and no dishwasher claim — one listing on this whole shelf makes one, the HydraPak Force in this group. The cap is described as easier to open and close, so a brush will get in, and no quick-disconnect is described either, so the hose stays attached while you work. This shelf's buying tip applies directly: work out how it dries before you order.
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 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 |
| deuter Streamer II 3.0 L reservoir | $45 | 3.0 liters — stated | A slide-clip closure — stated, and stated to be both easy to fill and leak-proof | Not published on the listing — the reservoir is given as 330 mm (13 in) × 170 mm (6.69 in) × 50 mm (1.97 in), which bounds the closure without measuring it | Not published on the listing — no hose length is published either |
| HydraPak Force 3L | $46 | 3 L — stated. The larger of the two HydraPak reservoirs in this group, and the most expensive listing on this shelf | A wide Slide-Seal top — stated to make filling easy, with the reservoir fully reversible. It is the opening type this shelf's introduction prefers, because it can be turned back on itself and dried | Not published as a figure. The Slide-Seal is a full-width opening rather than a port | Not published. The tube is described as flexible and non-kinking, insulated by a HydraFusion sleeve with a dust cover, and no bore is given |
A long day where three liters has to go in once and the tube has to be shut with one hand
Amazon reports what buyers took in the month before this page was last checked: at least 900.
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
