The engine's answer

Best ultralight backpack for one person on a weekend in winter nights near −12 °C, under €1000

Gossamer Gear

Gorilla 50

The Mariposa’s smaller sibling, and easier to live with.

  • Under 900 g for fifty litres
  • Removable frame and hip belt
  • Good pocket layout for on-the-move access
  • Uncomfortable much above 16 kg
  • Direct sales makes fitting a guess

Find it at Bergfreunde · Trekkinn · Decathlon · Alpinetrek · eBay (used)

Why it wins, in numbers

Gossamer Gear Gorilla 50 is the backpack the engine picked for this trip: €290 and 850 g, Capacity 50 L, a 92% match on the questions asked. The kit around it comes to €940 of the €1,000 ceiling, leaving €60.

What the engine asked for: a sleeping bag rated to −14 °C or lower, a mat with an R-value of at least 5.5, a pack of at least 35 L, and €1,000 for all four; anything that falls short of these is flagged beside the item.

The kit it belongs to

Four items chosen together, not four separate winners. Swapping one moves the others.

2.59 kg on your back · €940 of a budget of €1,000

Tent
Naturehike VIK 1: €180, 900 g, Season rating 3, 92% match. Strongest on: Grams.
Sleeping bag
Sea to Summit Traveller TrI: €200, 400 g, Comfort rating 10 °C, 53% match. Strongest on: Grams. Flagged: Not warm enough for these nights.
Sleeping mat
Therm-a-Rest NeoAir XTherm NXT: €270, 439 g, R-value 7.3, 75% match. Strongest on: Grams.
Backpack
Gossamer Gear Gorilla 50: €290, 850 g, Capacity 50 L, 92% match. Strongest on: Grams.

What the runners-up gave up

Each of these still leaves a kit that closes — the budget holds and the pack shuts. This is where each one lost.

  • ULA Ohm 2.0The Circuit’s lighter cousin, for kit that has already been trimmed.ULA Ohm 2.0 — €260, 800 g — gives up Comfortable load: 13 kg against the winner's 16 kg. It scores 90% to the winner's 92%.
  • Durston Kakwa 55Ultra fabric and a real frame at a price the cottage makers struggle to match.Durston Kakwa 55 — €290, 900 g — gives up Empty weight: 900 g against the winner's 850 g. It scores 90% to the winner's 92%.
  • Montane Trailblazer 44A frameless fast-packing sack that carries better than it should.Montane Trailblazer 44 — €160, 800 g — gives up Comfortable load: 12 kg against the winner's 16 kg. It scores 89% to the winner's 92%.

Questions this trip raises

How much does the whole kit cost?
€940 for all four items, €60 under the €1,000 ceiling. Prices are indicative euro list prices; the shops set their own.
How much does it weigh?
2.59 kg base weight — tent, sleeping bag, mat and pack together, before food, water and clothes. The pack is rated to carry 16 kg comfortably.
Is the pack big enough for 2 nights?
The tent, bag and mat plus food and clothes for 2 nights pack to about 35 L; Gossamer Gear Gorilla 50 holds 50 L.

Change an assumption

This page answers one trip. Yours is not that trip — adjust the nights, the budget or the company and watch all four re-rank.

Build my kit

Specifications are manufacturers’ own published figures and prices are indicative, not live. Comfort ratings and R-values are comparable across brands but describe a standardised sleeper on standardised ground — neither is a promise about you on a particular night. Check the current spec and price with the retailer before buying.