- Lightweight and compact: designed to compress tightly for easy packing, yet inflates well for use. Ultra-light with excellent warmth. Simple to fold and comes with a travel-friendly compression sack with drawstring and straps for strong compression. - Comfortable and warm: waterproof backpack double sleeping bag made of flannel cotton, ideal for backpacking, camping and cycling. Inside lined with soft brushed flannel cotton and filled with high-quality synthetic fiber for optimal heat insulation. - Waterproof and skin-friendly: exterior is water resistant 210T polyester fabric and does not require water-repellent sprays. Helps prevent wetness, reduces moisture, condensation and sweat. Includes fastening straps to keep zips securely closed through the night. - Removable splice: can be used as a single extra-large sleeping bag for folding or divided into two separate sleeping bags. Zips on both sides allow each person to exit easily without disturbing the other. When fully opened, it lays flat and can become two separate large blankets. - Use scenarios: ideal for two-person camping trips where space and weight matter; suitable for backpacking or cycling tours in cooler conditions; versatile for family or group camping, allowing two sleepers to share as a single bag or split into two blankets as needed.