•Two-way air valve: the first layer contains a one-way inflation system to prevent air leakage, and the second layer is a quick-release port •Ergonomic air column design will provide you with comfortable support in different sleeping positions •Perfectly fit the natural curve of the human body, giving you a very comfortable sleeping experience •The camping mat folds down to a compact size, deflated just right to fit in a backpack or suitcase Inflation method: •1. Can be inflated by mouth (not very recommended). •2. Can be inflated with Widesea original inflatable bag (not included), three bags of air can be fully filled. Specifications: •Maximum load-bearing: 150kg •Item number: WSCM-005 •Material: Nylon + TPU •R value: 1.3 •Uninflated size: 225*67cm •Inflated size: (165+25)*118*5cm, pillow height: 10cm Package included: •1 x Inflatable Mattress •1 x Storage Bag •Other items not include