Features Waterproof fabric:600D oxford fabric waterproof and wear-resistant Easy To Carry:Palm-sized easy to storage additional carabiner hook for outdoor portability A Perfect Camping Gear Sitting Pad For Autumn cold weather Fully Nylon Velcro,Durable And Non-Abrasive To Hands Specification Name:Outdoor 4-fold cushion Weight:about 75g Thickness:about 8mm Expand size:36.5cm/14.3in*34.5cm/13.5in Folding size:18.5cm/7.2in*17cm/6.6in Notes Product dimensions are measured manually, there may be errors, please understand.