The outer fabric is 210T nylon ripstop, treated with a PU coating and a water-repellent finish; the interior is insulated with hollow-fiber cotton bonded to a fleece layer. The base consists of anti-slip Oxford fabric backed by a waterproof TPU membrane. A two-way nylon-coil zipper allows the unit to be fully unzipped and laid flat for use as a mat. A matching drawstring storage bag with compression straps is included. High-strength polyester thread is used throughout, with uniform quilting spacing.



