The Vango Mantis 300 is a lightweight 3-season mummy sleeping bag built around Vango's ThermX insulation system, combining targeted insulation placement with Thermal Reverb aluminised layers and Thermal Embrace elasticated lining to focus warmth where it is needed and reduce cold spots without adding weight. A 40-denier Polair Eco recycled ripstop nylon shell keeps the bag breathable, water resistant and highly compressible, packing to 27 x 19cm. DofE recommended and ISO 23537-1:2022 certified, it suits 3-season camping, trekking and expedition use. Need it warmer? The Vango Mantis 400 Sleeping Bag is the cold-weather version of this bag, with the same ThermX construction, the same internal dimensions and the same 190cm maximum user height, rated to a limit of -6°C instead of -1°C for 100g more weight. Choose this 300 for spring through autumn and the 400 if you camp through winter. Key Features ThermX Insulation Design - Proprietary construction targets warmth where it is needed most for improved thermal efficiency Thermal Reverb Technology - Non-woven aluminised layers reflect body heat back to the user for enhanced warmth retention Thermal Embrace System - Elasticated threads in the lining cinch the bag closer to the body, reducing cold spots without restricting movement 40D Recycled Ripstop Shell - Polair Eco recycled ripstop nylon that is durable, water resistant, lightweight and highly breathable 40D Recycled Ripstop Lining - Soft-touch, tear resistant and highly compressible to reduce pack size Omega Ergonomic Shaping - Positions zips and seams in the lower section of the bag and shapes it around head and shoulders for better heat retention 2 Panel 3D Hood - Ergonomically shaped hood helps minimise heat loss from the head Adjustable Shoulder Baffle - Insulated ergonomic baffle helps retain warmth inside the bag Insulated Zip Baffle - Runs the length of the zip to retain heat and reduce cold spots Arrow Foot 2.0 Footbox - Redesigned ergonomic footbox improves comfort while reducing heat loss Full-Length Two-Way Auto-Lock Zip - Operable from inside the bag, with anti-catch piping to stop the zip snagging the lining Internal Pocket - Convenient storage for a phone, head torch or valuables 3-Strap Compression Stuff Sack - Packs down to 27 x 19cm for efficient transport and storage DofE Recommended - Suitable for Duke of Edinburgh expedition use ISO 23537-1:2022 Certified - Extensively tested to meet current industry temperature standards How to read the temperature ratings. Comfort 3°C is the figure to plan around: it is the temperature at which a standard adult woman should sleep comfortably. Limit -1°C assumes a standard adult man sleeping curled up, and Extreme -12°C is a survival figure only, not a usable camping temperature. If you sleep cold, treat the comfort rating as your realistic lower limit. Ideal For Camping and Outdoor Adventures - Lightweight 3-season sleeping bag for campsite and outdoor use Backpacking and Trekking - Compressible low-bulk design for pack-efficient travel DofE Expeditions - DofE recommended sleeping bag suitable for expedition use Wild Camping - Reliable warmth and compact transport for remote overnights Multi-Day Outdoor Trips - Comfortable mummy bag for extended outdoor use Technical Specifications Brand Vango Model Mantis 300 MPN SBVMANTIS000004 Product Type 3 Season Mummy Sleeping Bag Season Rating 3 Season Weight 1.34kg Pack Size 27 x Ø19cm Shape Mummy Zip Side Left Shell and Lining 40D Polair Eco recycled ripstop nylon Fill Type 4T Eco Recycled Synthetic Filling Comfort Rating 3°C Limit Rating -1°C Extreme Rating -12°C Suggested Usage Range -1°C to 25°C Internal Length 205cm Internal Chest Width 78cm Internal Foot Width 48cm External Chest Width 80cm Maximum User Height 190cm Colour Pine Green DofE Recommended Yes Certification ISO 23537-1:2022 Certified Guarantee 2 year Vango guarantee, 3 years if registered Warranty Vango covers this sleeping bag with a two year user warranty against manufacturing faults in the fabrics, component parts and workmanship. Register it with Vango within six months of purchase and the cover extends to three years. Keep your receipt, as proof of purchase is needed for an extended claim. Start any claim with us and we will handle the return to Vango on your behalf. Products must be sent back clean and dry, or they may be returned uninspected. The warranty covers normal, intended use. It does not cover general wear and tear, fabric flaws caused by excessive wear, zips broken by forcing or jamming, over-stretched seams coming apart, buckles subjected to undue force, a draw cord pulled out with excessive force, a stuff bag broken through undue force, or reduced loft of the filling over time. Store the bag loose rather than compressed between trips to keep the filling lofting.
