Mattress Ultra Light Mat S.I.™ Large 198x64x2.5cm

Our Ultra light S.I. Sleeping Mat is for ultra-light hikers who can’t go past the tried and true self-inflating foam mats.


The only mat in our S.I. range to come in an extra-small size, it easily fits into your ultra-light pack.
All of our S.I. mats use the first ever, multi-function single valve designed specifically for self-inflating mats. No more fighting re-inflation as you try to roll up your mat!

Anti-slip print on base of mat, helps hold your mat in place when camping on sloping ground is unavoidable
Multi-function high flow-rate valve provides fast inflate, deflate and easy fine-tuning for personalised comfort
Includes a repair kit for easy puncture repair in the field
Included Pillow Lock™ system attaches Sea to Summit pillows to mat
Includes stuff sack

The 2.6 R-value provides the insulation needed through the shoulder seasons while the memory foam means you don’t have to exert yourself inflating your mat at the end of the day.
Delta Core-V™ Technology
Small vertical Delta Cores™ in body contact areas (shoulders, hips and feet) keep you warmer
Larger vertical Delta Cores™ in non-body contact areas reduce the mat’s weight and bulk
Lightweight 30D polyester with extrusion laminated TPU used on top and base