TRIWONDER Ultralight Travel Camping Pillows Inflatable Air Pillow Compact Portable for Outdoor Camping Backpacking Hiking, Compressible Blow Up Sleeping Pillow 80%Polyester + 20%TPU Imported OPTIMAL COMFORT -- The inflatable camping pillow made of the material with high breathability and elasticity. U-shaped design friendly to the cervical vertebrae, better supports the cervical spine, fits the body curve, relieves neck stress more comfortably. EASY TO INFLATE & DEFLATE -- Quick inflation in 3 - 5 breaths and deflation only in seconds. The ultralight inflatable pillow tailored carefully to prevent leaking, is possible to sustained use. LIGHTWEIGHT & COMPACT -- Weighs only 2.8 oz, the backpacking blow up pillow can be folded compactly in the storage bag. Package size 4*2.4 inches, inflated size 17*13*5 inches. ERGONOMIC SHAPE DESIGN -- Two wide grooves in the camp pillow center cradle your head in supportive position and prevent head sliding. it will also supports your neck and lumbar, ensures you a cozy sleep. MULTI-FUNCTION -- You could use it as a air pillow for outdoor activities like Camping, Traveling, Backpacking, Mountaineering, Picnic, or as a lumbar support for your sofa or office chair.