Sea to Summit Ultra Light S.I.™ Sleeping Mat — Regular

Sea to Summit's 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 Delta Core-V technology removes up to 20% of the weight and bulk of the polyurethane (PU) foam of a self-inflating mattress, while maintaining comfort and insulation. Sea to Summit have also engineered the “one-way” inflation valve to be reversible and used it to prevent the mat from drawing air back in — this allows you to roll the mat up as small as possible without fighting re-inflation as you go. This patent-pending valve design has the same slim profile, faster inflation than traditional screw valves, easy pressure fine-tuning and super-fast deflation rate as our air mattresses and pillow.