Perfect for those venturing into the great outdoors, the Sea to Summit Pursuit Plus Self-Inflating Sleeping Pad promises comfort, convenience, and durability. Whether you're side sleeping or adjusting positions, the thermally efficient contour shape caters to all. This sleeping pad is designed with 3in Horizontal Delta Cores, providing air-filled chambers for enhanced comfort without adding weight. Handling it is a breeze, thanks to the XPEL Valve and the side-loading stuff sack that simplifies inflation, adjustment, deflation, and packing. And with an ASTM-tested R-Value of 4.1, it offers extended three-season comfort and insulation. It's even constructed from eco-conscious, bluesign APPROVED, non-PFAS 20 denier ultralight fabric. Get set for a comfortable, restful night under the stars with this sleeping pad.