Thinsulate

Waterproof/ Breathable

The original warmth without bulk insulation. Inch for inch no insulation keeps you warmer than Thisulate^™ insulation. When you compare equal thicknesses, Thinsulate^™ insulation provides up to twice the warmth of other high-loft insulating materials and nearly one and a half times the warmth of down.
Thinsulate^™ Ultra is 15% more heat retaining compared to Thinsulate, delivering an incredibly warm insulation.