Cnoc Outdoors Vecto 2L (28mm) Review

Overview

The Cnoc Vecto 2L is a collapsible, TPU soft-sided water container built specifically to serve as the “dirty bag” half of a squeeze or gravity filter system.

Its defining feature is a dual-opening design: a wide slider-sealed end for fast filling and a standard 28mm screw neck for attaching your filter.

It’s aimed squarely at backpackers and thru-hikers running a Sawyer Squeeze, HydroBlu Versa Flow, or LifeStraw Flex — and it’s become something of a trail standard for good reason.

Key Specs

Spec	Value
Weight	79 g (2.8 oz)
Capacity	2 L (68 oz)
Packed Size	17.5 × 5 × 3.75 cm
Opening Thread	28 mm
Material	FDA-approved TPU, BPA/BPF/BPS free
Temperature Rating	20°F (-6°C) to 120°F (49°C)
Comparison	See how Vecto 28mm compares to similar gear

Performance

Filling

This is where the Vecto earns its reputation. This is the whole reason to own a Vecto over the bags that ship with your Sawyer filter — the Sawyer pouch can only be filled through their 28mm opening, whereas the entire back end of the Vecto opens wide. In practice, that slider makes a real difference when you’re kneeling over a trickle of a stream. The bag goes shallow, which is awesome in low water spots. Group users frequently note this advantage: everyone else couldn’t get their bladders to fill in shallow streams, while the Vecto fills easily through the large opening.

Durability

The Sawyer pouches are prone to leakage caused by damage from over-squeezing — the Vecto tends to hold up to long-term squeeze filtering better.

Long-term users back this up: after a three-year update, these bags had been through hundreds of miles and countless gallons of water and were still in great shape.

That said, it’s not invincible.

It’s not bulletproof — there have been occasional issues with pinprick-size leaks, though Cnoc seems to have fixed this for new out-of-the-box Vectos. Because TPU is a porous material, pinholes can still develop from UV exposure, colder temperatures, abrasion, and similar stresses.

Keep it out of prolonged direct sun when not in use, and don’t stuff it against sharp objects.

One hardware concern worth flagging: if the slider breaks, it can’t be fixed or replaced — at least not in the wilderness, and not easily. The slider is the heart of the design, so treat it accordingly.

Leak Resistance & Carry

Cnoc themselves, in their FAQ, specifically say they don’t recommend putting your full Vecto inside your pack if you’re concerned about leaking. Most experienced users treat it as a dedicated dirty bag — you filter into hard-sided bottles, then roll and stow the empty Vecto. For long water carries, the full Vecto rides in an external open pocket, not inside the pack.

Cleaning & Drying

The wide opening allows for easy scrubbing of the interior without any special tools.

Better still,

the Vecto can be turned inside out to dry — after washing and hanging, it was moisture-free in just twenty minutes in testing, faster than any other bladder tested in that comparison.

For a piece of gear that lives in damp conditions, that matters.

Taste & Off-Gassing

When new, the Vecto imparts a plasticky TPU taste onto the water, but this fades over time. A good scrub with kitchen soap and water, a proper rinse, then leaving the wide opening propped open so the full inner surface can air for a few days will get rid of the smell completely.

Don’t skip this step before your first trip.

Filter Compatibility

The Vecto attaches to filters with a 28mm thread, such as the Sawyer Squeeze, Mini, or Micro, the LifeStraw Flex, and the HydroBlu Versa Flow.

Some users have reported inconsistent seals with certain filters — particularly the HydroBlu — so it’s worth doing a leak test at home before hitting the trail with a new filter pairing.

Both the slider and the cap are tethered to the bottle to avoid losing them or dropping them in a stream

— a small but genuinely welcome detail.

Weight vs. Simpler Alternatives

It’s worth being honest about weight here: the Vecto is heavier than comparable soft bottles — the Evernew 2L comes in around 45 g versus the Vecto’s 74 g. You’re paying roughly 30 g for the dual-opening system. If you only ever filter into a wide-mouth bottle from a decent stream, a simpler pouch might serve you fine. If you regularly encounter shallow or slow-moving water sources, those 30 g are well spent.

Pros & Cons

Pros

• Wide slider opening makes filling from shallow streams fast and nearly effortless
• Dramatically more durable than the Sawyer stock pouch over the long haul
• Turns inside out for quick drying — dry in ~20 minutes
• Tethered cap and slider means no lost parts
• Easy to clean without special tools
• Inexpensive — one of the best value-per-gram upgrades for Sawyer users

Cons

• Heavier than basic squeeze pouches (Evernew 2L is ~34 g lighter)
• Not recommended by Cnoc itself for carrying full inside a closed pack
• Slider is a single point of failure — not field-repairable
• Initial plastic off-taste requires some break-in washing
• Occasional filter compatibility issues (notably with HydroBlu threading)

• Not well-suited as a primary drinking vessel or hydration bladder with a drink tube

Who Should Buy This

This is the near-perfect tool for a specific job: the dirty-bag half of a Sawyer Squeeze or similar squeeze/gravity filter system.

If you’re running a Sawyer and still using the included pouch, the Vecto is a direct, inexpensive upgrade. It also suits anyone who does occasional gravity filtering at camp, or who needs an ultralight emergency water carrier for longer dry stretches.

If you mostly filter from fast-running streams with a reliable bottle-to-filter setup, the simpler Evernew pouch saves weight without much real-world cost.

Verdict

The Vecto 2L gets one thing exactly right — making water collection fast and nearly effortless — and everything else is competent or better.

The weight premium over simpler pouches is real but justified by the filling speed and durability advantages. Treat it as a dedicated dirty bag, break it in before you go, and keep the slider away from rocks and sharp objects, and it should last you a very long time. Rating: 8.5/10.