Built for comfort-seeking outdoor lovers, this 3-inch thick, self-inflating sleeping pad delivers maximum comfort and insulation for camping and backpacking Horizontal Delta Cores reduce weight and packed volume while maintaining foam support and creating air-filled chambers for plush, even cushioning XPEL multi-function valve and side-loading stuff sack make inflation, adjustment, and packing quick and easy ASTM-tested R-Value of 4.1 provides extended three-season warmth and insulation Rectangular - Large/Wide measures 78 x 30 x 3 inches and weighs 3.11 pounds; includes side-loading stuff sack Designed for comfort-seeking outdoor enthusiasts, the Sea to Summit Pursuit Plus SI Sleeping Mat is a 3-inch thick, self-inflating mat built for maximum comfort and insulation on camping and backpacking adventures. Available in a lightweight Contour shape for weight efficiency or a Rectangular version for maximum room, both feature Horizontal Delta Core construction that reduces foam volume without sacrificing support or comfort. The XPEL multi-function valve makes inflation, adjustment, and deflation easy, while the side-loading stuff sack streamlines packing and storage. With an ASTM-tested R-Value of 4.1, the Pursuit Plus delivers reliable warmth for extended three-season use. Constructed with bluesign APPROVED, RCS-recycled, solution-dyed fabric, it offers high comfort with a low environmental footprint and is part of Sea to Summit’s 1% for the Planet commitment. Sea to Summit products are guaranteed against defects in materials or workmanship for the lifetime of the product.