The engine's answer

Best ultralight backpacking kit for one person on a weekend in chilly nights around 3 °C, under €400

Why it wins, in numbers

The four items come to €400 of the €400 ceiling — €0 to spare — and weigh 2.66 kg together before food and water. They pack to 30 L of the 30 L the pack offers.

What the engine asked for: a sleeping bag rated to 1 °C or lower, a mat with an R-value of at least 2.5, a pack of at least 30 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.

2.66 kg on your back · €400 of a budget of €400

Tent
Naturehike VIK 1: €180, 900 g, Season rating 3, 92% match. Strongest on: Grams.
Sleeping bag
Forclaz MT500 0 °C Down: €130, 1.10 kg, Comfort rating 0 °C, 62% match.
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
Alpkit Gourdon 30: €60, 600 g, Capacity 30 L, 88% 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.

  • Forclaz MT100 15 °CThe cheapest thing here, and honest about what it is.Forclaz MT100 15 °C — €35, 800 g — gives up Comfort rating: 15 °C against the winner's 0 °C. It scores 42% to the winner's 62%.
  • Forclaz MT100 Easyfit 50The cheapest full-size pack that is not a mistake.Forclaz MT100 Easyfit 50 — €60, 1.50 kg — gives up Empty weight: 1.50 kg against the winner's 600 g. It scores 52% to the winner's 88%.

Questions this trip raises

How much does the whole kit cost?
€400 for all four items, €0 under the €400 ceiling. Prices are indicative euro list prices; the shops set their own.
How much does it weigh?
2.66 kg base weight — tent, sleeping bag, mat and pack together, before food, water and clothes. The pack is rated to carry 10 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 30 L; Alpkit Gourdon 30 holds 30 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.