Cross Link Polyethylene Made in the USA or Imported Basic closed-cell foam sleeping pad is a lightweight, durable, and economical option for camping and backpacking Trusted by outdoor enthusiasts for generations, the classic ground pad rolls up compactly and is light enough (14 ounces) to carry almost anywhere Designed with supportive peaks and heat-trapping valleys in the padding for insulation and comfort; R-Value 2.0 Virtually indestructible cross-linked polyethylene ensures durability and protection from rocks, and sharp uneven sleeping surfaces Closed-cell foam mattress measures 72 x 20 inches and weighs 14 ounces; made in the USA