Sea to Summit Comfort Plus SI

Camp Comfort Plus S.I. Self Inflating.

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The opinion of Aventure Nordique

Maximised comfort and warmth for cool-climate treks. Thicker, lighter self inflating mattress with Delta Cores.


  • Large horizontal triangular cores reduce the weight and bulk without sacrifing support and comfort.

  • PU foam is ticker on top of each Delta Core for better insulation directly under you. Continuous foam layer on top and bottom of Delta Cores ensuring consistent warmth along entire lenght of the mat, and better bonding with shell fabrics.

  • Diagonal supporting foam walls help inflate the mattress and creates a more compact rolled mat.

  • Anti-slip print on base of mat, helps hold your mat in place when camping on sloping ground is unavoidable.

  • Multi-fonctional, high flow-rate valve. Allows easy inflation, one-way deflation (prevents unwanted reinflation while rolling up mat) and fine tuning for comfort.

Technical details

Manufacturer Sea to Summit
Product name Comfort Plus SI
Season 4 season
Type Self-inflating
Form Mummy
R-Value 4.1

A luxurious 30D stretch knit fabric for a soft next to skin feeling on top. Light weight 30D polyester with extrusion laminated TPU used on base.

Colour Rouge
Length M : 183 cm - L : 198 cm
Width M : 51 cm - L : 64 cm
Thickness 8 cm
Folded M : Ø 15,9 x 26 cm - L : Ø 17,2 x 33 cm
Weight M : 970 g - L : 1300 g
Accessories Storage bag
Warranty 2 years
Country of Manufacture Taiwan


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