Suspension System (patent pending)
The Sac series uses an innovative and unique suspension system to increase the thermal efficiency without weight and bulk.

The system consists of 3 layers: (varying in thickness for Sac 1, 2 and 3)

• Internal layer of X-static® fibre, chosen for it's silver coating to reflect radiant heat and antimicrobial that reduces odour from micro-organisms. (see details under X-Static)
• Mid suspension layer, a lattice of loosely woven tubes of fibre, to traps pockets of warm air between the internal and outer layers.
• Outer thermal barrier suspended by the mid layer.