LETO Adult Mummy Lightweight Down Sleeping Bag 5–15 °C
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LETO lightweight down sleeping bag 5–15 °C. Designed for 3-season hiking, trekking and bikepacking, this down mummy sleeping bag offers effective insulation for most spring, summer and autumn nights while remaining very compact.
The water-repellent ripstop nylon outer shell protects the filling from light moisture and snags. The inner lining, also made of fine nylon, is soft against the skin and dries quickly. The high-quality goose down filling (some longer versions use duck down) ensures an excellent warmth-to-weight ratio. The comfort temperature range of 5 to 15°C is suitable for cool nights in the mountains or while camping, when used with a suitable insulating sleeping mat.
With a simple, adult-sized design, the bag comes in two lengths: Standard (approximately 200 x 80 cm) and Long (approximately 210 x 80 cm), compatible with heights up to 175 cm and 185 cm respectively. The mummy shape hugs the body and minimizes the volume of air that needs to be heated. The weight remains close to that of a water bottle, around 600 g for the standard version and 700 g for the long version, compressed into a compact stuff sack that easily fits in a backpack.
Technical specifications and advantages
- Natural down filling: high loft goose down for classic versions, selected duck down on some 2025 versions, offering good insulation and high compressibility.
- Temperature range 5–15 °C: suitable for mid-season nights and summer bivouacs at moderate altitude, with a limit of use around 0 °C for an experienced user.
- Optimized mummy fit: fitted shape with ergonomic shoulders and narrow footbox to reduce heat loss while maintaining comfort of movement.
- Outer fabric and nylon lining: lightweight ripstop nylon exterior with water-repellent treatment, smooth breathable nylon interior comfortable against the skin.
- Compartmentalization: regular stitching along the entire length which keeps the down in place and limits cold spots after several compressions.
- Wrap-around hood: Integrated hood with drawstring to adjust the opening around the face and keep the heat in at the head.
- Convenient side closure: long zip on the left or right side depending on the version, with a draft excluder flap and an easy-to-grip pull tab from the inside.
- Very low weight: approximately 600g in Standard and 700g in Long, ideal for hikers looking for an ultralight sleeping bag.
- Reduced compressed volume: comes with a compression bag allowing you to obtain a cylinder of approximately 28 × 16 cm, which takes up little space in a trekking bag.
- Multiple colours: blue, green and grey variations in standard or extended length, plus 2025 grey and blue versions in duck down to broaden the technical and aesthetic choice.
Each order is carefully prepared in collaboration with our logistics center.
Shipping generally takes place within 24 to 48 working hours after validation.
- Average delivery times in mainland France: 3 to 12 working days
- Tracked delivery with tracking number sent by email
Areas served :
Metropolitan France and also in Spain, Belgium, Hungary, Bulgaria, Croatia, Greece, Ireland, Poland, Czech Republic, Luxembourg, Portugal, Malta.
Order tracking :
A tracking link is sent upon shipment. You can track the progress at any time via the dedicated page.
Each order is carefully prepared in collaboration with our logistics center.
Shipping generally takes place within 24 to 48 working hours after validation.
- Average delivery times in mainland France: 3 to 7 working days
- Tracked delivery with tracking number sent by email
Areas served :
We deliver throughout the European Union (excluding Malta) as well as to the United States, Canada and Australia.
Order tracking :
A tracking link is sent upon shipment. You can track the progress at any time via the dedicated page.
Product warranty:
Because your equipment must last, all our products are covered by the 2-year legal guarantee of conformity (EU) from delivery.
