A warm, plush option for backpacking or camping, the Sea to Summit® Comfort Plus SI (Self Inflating) Mat utilizes unique die-cutting to achieve a 4.1 R-Value and provide a 8cm / 3" thick sleeping base.

The tapered, self-inflating pad uses Delta Core-V™ Technology to create supportive cushioning, deliver consistent warmth, and make inflation efficient. Triangular cutaways within the open-cell foam core add structural support while cutting down on bulk and enabling the mattress to roll up more compactly when not in use. The 30D stretch-knit top fabric feels cozy next to skin and the 30D plain-weave base fabric bolsters durability.

A stand-out feature on Sea to Summit® pads is the low-profile multi-function valve. A one-way design allows for fuss-free inflation and an internal button lets you make micro adjustments to firmness. A larger port beneath the top portion of the valve makes deflation quick and easy.