The Vango Mantis 400 Sleeping Bag is a lightweight, high-performance sleeping bag designed for backpacking, trekking and camping in cooler conditions
Built around Vango’s innovative ThermX construction, the Vango Mantis 400 combines proprietary insulation technology with targeted heat retention to maximise the warmth-to-weight ratio, delivering excellent thermal performance while maintaining a compact, compressible pack size.
The outer shell is made from recycled 40D Polair® Eco ripstop nylon, providing a lightweight, breathable and water-resistant finish, while the soft-touch recycled lining is tear resistant and highly compressible. Thermal Reverb technology uses strategically positioned non-woven aluminised fabric to reflect body heat back towards the user, while Thermal Embrace elasticated lining gently draws the sleeping bag closer to the body to reduce cold spots without restricting movement.
Designed to maximise warmth and comfort, the Vango Mantis 400 features an insulated ergonomic shoulder baffle, a 2-panel 3D hood to minimise heat loss from the head, and Vango’s Omega shaping, which contours around the head and shoulders while positioning seams and the zip lower on the bag to improve heat retention. An insulated zip baffle further reduces cold spots, while the redesigned Arrow Foot 2.0 ergonomic footbox increases comfort and flexibility while helping minimise heat loss.
Practical features include a full-length two-way auto-lock zip with anti-catch piping for easy ventilation and smooth operation, an internal pocket for storing small essentials, and a 3-strap compression stuffsack that reduces packed size without compromising compressibility. The Vango Mantis 400 is ISO 23537-1:2022 certified, providing independently tested temperature ratings for confidence in real-world conditions.
Features
- Lightweight sleeping bag for backpacking, trekking and camping
- Innovative ThermX construction targets insulation where warmth is needed most
- Increased warmth-to-weight ratio with a compact pack size
- Recycled 40D Polair® Eco ripstop nylon shell is lightweight, breathable and water resistant
- Soft-touch recycled 40D ripstop nylon lining is tear resistant and highly compressible
- Thermal Reverb technology reflects body heat to improve warmth and heat retention
- Thermal Embrace elasticated lining reduces cold spots without restricting movement
- Insulated adjustable ergonomic shoulder baffle helps retain heat
- 2-panel 3D hood minimises heat loss from the head
- Omega shaping improves thermal efficiency around the head and shoulders
- Redesigned Arrow Foot 2.0 ergonomic footbox enhances comfort and flexibility
- Full-length two-way auto-lock zip with anti-catch piping
- Insulated zip baffle reduces heat loss along the zip
- Internal pocket for small essentials
- 3-strap compression stuffsack reduces packed size
- ISO 23537-1:2022 certified temperature ratings
Specifications
- Season: 4 Season
- Weight: 1.44kg
- Shape: Mummy
- Zip Side: Left
- Suggested Usage Min: -6°C
- Suggested Usage Max: 15°C
- Int Length: 205cm
- Int Chest Width: 78cm
- Int Foot Width: 48cm
- Ext Chest Width: 80cm
- Max User Height: 190cm
- Fill Type: 4T Eco – Recycled Synthetic Filling
- Limit: -6°C
- Extreme: -20°C
























