The engine's answer

Best ultralight backpacking kit for one person on a weekend in frosty nights near −5 °C, under €400

Why it wins, in numbers

The four items come to €355 of the €400 ceiling — €45 to spare — and weigh 2.76 kg together before food and water. They pack to 38 L of the 44 L the pack offers.

What the engine asked for: a sleeping bag rated to −7 °C or lower, a mat with an R-value of at least 4.5, a pack of at least 38 L, and €400 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.

2.76 kg on your back · €355 of a budget of €400

Tent
3F UL Gear Lanshan 2: €130, 1.10 kg, Season rating 3, 88% match. Strongest on: Grams.
Sleeping bag
Forclaz MT100 15 °C: €35, 800 g, Comfort rating 15 °C, 42% match. Strongest on: Grams. Flagged: Not warm enough for these nights.
Sleeping mat
Gossamer Gear ThinLight Foam Pad: €30, 60 g, R-value 0.5, 50% match. Strongest on: Grams. Flagged: Too little insulation from the ground.
Backpack
Montane Trailblazer 44: €160, 800 g, Capacity 44 L, 89% 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.

  • Naturehike Cloud Up 2The cheapest honest way into lightweight backpacking.Naturehike Cloud Up 2 — €150, 1.80 kg — gives up Doors: 1 against the winner's 2. It scores 56% to the winner's 88%.
  • Forclaz MT500 10 °CA cheap, cheerful summer bag that does not mind getting damp.Forclaz MT500 10 °C — €60, 900 g — gives up Price: €60 against the winner's €35. It scores 40% to the winner's 42%.
  • Alpkit NumoA light summer air mat for a third of the usual money.Alpkit Numo — €70, 390 g — gives up Weight: 390 g against the winner's 60 g. It scores 43% to the winner's 50%.
  • Granite Gear Crown3 38The Crown cut down for fast, light, short trips.Granite Gear Crown3 38 — €200, 900 g — gives up Price: €200 against the winner's €160. It scores 87% to the winner's 89%.

Questions this trip raises

How much does the whole kit cost?
€355 for all four items, €45 under the €400 ceiling. Prices are indicative euro list prices; the shops set their own.
How much does it weigh?
2.76 kg base weight — tent, sleeping bag, mat and pack together, before food, water and clothes. The pack is rated to carry 12 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 38 L; Montane Trailblazer 44 holds 44 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.