Best Carabiner for Alone-Style Survival, per the Show

A carabiner's usual job in the outdoors is hardware, not a headline item: it closes a hammock suspension, clips a food bag out of reach of animals, or anchors a tarp line under tension. On Alone, the item catalog lists exactly one product for it, a Petzl locking carabiner priced at $12 to $18, and flags it as an unverified "category example" rather than something any specific contestant is documented carrying. Checked against every contestant's gear list across all 19 tracked season and spinoff files, no one's ten items includes a carabiner by name, verified or otherwise.

The rope-and-hardware system it would belong to

A carabiner doesn't do anything alone; it's a connector for a system built from other items. The catalog's shelter category gives a clearer picture of which parts of that system actually show up on gear lists and which don't.

Item	Category	Popularity (per catalog)	Contestant-verified products
Paracord	shelter	commonly-picked	2 (generic 550 cord, Titan SurvivorCord)
Tarp	shelter	occasionally-picked	0 (one unverified example)
Bivy Bag	shelter	rarely-picked	1
Hammock	shelter	unknown	0
Climbing Rope	shelter	unknown	0
Carabiner	other	unknown	0

Paracord is the one clear anchor point in that list, commonly-picked with two contestant-verified products behind it. Everything a carabiner would typically connect to it (a hammock, a climbing rope, a rigged tarp) is either unranked or thin on documented picks, and the carabiner itself has never been named at all. That's a coherent picture: contestants build shelter and food-storage rigging mostly with cordage and knots rather than metal hardware.

Why that's a reasonable choice, not just an oversight

Knots do the job a carabiner does, more slowly to tie but with no moving part to fail, no metal to corrode over a 40-to-100-day stay in wet or freezing conditions, and no extra weight or pack space spent on something a length of paracord and a trucker's hitch or a bowline can replace. Several season locations, the Arctic Circle stretches used for seasons 11 and 13 among them, run cold enough that a metal clip's action could seize or its plastic gate could go brittle, a real risk for climbing hardware in sustained sub-zero conditions even though this site's data doesn't document any contestant citing that specific reason.

Where a carabiner would still earn its slot is a location with genuine technical rope work: a steep water crossing, a cliff-adjacent camp needing a fixed line, or a hanging food cache that has to open and close daily without re-tying a knot each time. None of the documented Alone locations are described in this site's season data as requiring that kind of terrain, which likely explains why the item shows up in the catalog as a theoretical option rather than a proven pick.

The honest takeaway

There's no winning loadout, or any loadout at all, to point to for this item. If a carabiner does make someone's ten, the catalog's example price ($12 to $18 for a locking model) is a reasonable planning number, and a locking gate over a plain spring gate is worth the small extra cost for anything holding food or shelter weight unattended. Otherwise, the show's own record suggests paracord and basic knot work have handled this job on every documented loadout instead.

For the item's catalog entry, see the carabiner gear page, and for the cordage that's actually shown up on winning lists, the paracord gear page. The rules breakdown covers what's officially eligible among the ten personal items, and Sam Larson's season 5 win and William Larkham Jr.'s season 11 win, both in demanding northern terrain, are worth reading for how those contestants handled shelter rigging without any metal hardware on record.