ROCK FRONT 400 down sleeping bag

313.83$

3-season sleeping bag insulated with high-quality 800 Fill Power goose down. The design allows you to transform it into a blanket, quilt or underquilt for a hammock.

The updated version has a lightweight 15den fabric, an improved hood and collar adjustment system, and an increased hood volume.

Choose the size
Estimated delivery dates: February 2, 2026 – February 19, 2026
Description

ROCK FRONT 400 is a warm down sleeping bag with a unique design that makes it ideal for adventures in autumn, spring, and summer.

It is a mummy-sleeping bag that has a full-length central zipper. It allows you to fully unzip the sleeping bag and turn it into a blanket if the night is too warm. The second slider allows you to open the zipper at the bottom for leg ventilation.

For couples travelling together, there is the option to zip up two sleeping bags and sleep together.

The insulation used is Ukrainian goose down 800 Fill Power. It is lighter than any synthetic analogue, retains heat well, and compresses perfectly, so the sleeping bag takes up minimal space in your backpack. The water-repellent down and fabric impregnation make the sleeping bag more resistant to wet off-season conditions.

Application:

  • mummy-sleeping bag for backpacking in spring, autumn, and summer
  • a blanket for warm summer nights
  • double sleeping bag (two sleeping bags can be attached to each other)
  • quilt (with Quilt Set)
  • underquilt for a hammock (with Underquilt set)

Features:

  • warm seam technology guarantees uniform thermal insulation
  • insulation: Goose Down 800 Fill Power
  • lightweight and compact
  • water-repellent down and fabric impregnation
  • adjustable anatomical hood
  • an insulated strip along the zipper protects against drafts
  • insulated collar prevents heat loss from the inside
  • can be opened for leg ventilation
  • 2 sleeping bags can be attached to each other (any models from the ROCK FRONT line with YKK #5 zip)

Set includes:

  • sleeping bag
  • compression sack
  • mesh sack for long-term storage

To protect your sleeping bag from the rain, we recommend the Neptun dry bag.

For the ROCK FRONT 400, we recommend size L.

* The total weight of the product can vary within 2%.

** We are constantly improving our products, therefore we reserve the right to change the configuration, accessories, colors and shades of fabrics.

Specifications

Temperature rating: (Tcomfort/Tlimit) +2°C / -4°C | 36°F / 25°F

Insulation: 800 Fill Power goose down

Weight:

  • S Medium: 710 g (insulation weight: 390 g) / 25.04 oz (insulation weight: 13.76 oz)
  • M Short: 740 g ( insulation weight: 400 g) / 26.10 oz (insulation weight: 14.11 oz)
  • M Medium: 770g (insulation weight: 410g) / 27.16 oz (insulation weight: 14.46 oz)
  • M Long: 810g (insulation weight: 420g) / 28.57 oz (insulation weight: 14.82 oz)
  • L Short: 820g (insulation weight: 430g) / 28.92 oz (insulation weight: 15.17 oz)
  • L Medium: 840g (insulation weight: 450g) / 29.63 oz (insulation weight: 15.87 oz)
  • L Long: 890g (insulation weight: 470g) / 31.39 oz (insulation weight: 16.58 oz)

Compression sack weight: 40g / 1.41 oz

Size in the sack when compressed: 17×22 cm / 6.7×8.7 in

Inner and outer material: 15den nylon rip-stop

Two-way zipper YKK 5

Fittings: Woojin, YKK

Manufacturer: ROCK FRONT (Ukraine)

Additional information
Weight 0.7 kg
Dimensions 22 × 32 × 19 cm
size

S Medium

,

M Short

,

M Medium

,

M Long

,

L Short

,

L Medium

,

L Long

color

khaki

,

Khaki with mustard

,

Turquoise with grey

insulation

800 Fill Power goose down

technology

Box baffles

temperature-rating

+3°C…-4°C

extra-features

Blanket mode

,

Footbox ventilation

,

Inside pocket

,

Quilt mode

,

Underquilt mode

,

Zips with bags (YKK 5)

Reviews (1)

1 review for ROCK FRONT 400 down sleeping bag

  1. Serj

    I bought the sleeping bag last year, but started using it regularly only this autumn.
    It’s a very light and compact sleeping bag, and for me, as a cold sensitive person, it definitely exceeded expectations. The temperature rating is true.
    To clarify, I also use a liner, it adds another 1-3 degrees to the specified rating.

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Shipping & Delivery

Shipping

Free worldwide shipping for orders from 100€ or 100$. If the order amount is less, you have the option to pay for shipping immediately.

Customs duties and VAT

These must be paid separately. You can find information about importing goods into your country here.

Delivery terms

We ship orders within 1-3 business days. Average delivery time is 8-20 days.