Specially constructed high loft insulation gives comparable warmth to natural down but is also lightweight and quick drying. Lightweight, high loft, and quick-drying for effortless efficiency in cold and wet conditions.
Key benefits

Insulating
Dual-faced fabric to increase warmth retention. Balances insulation and airflow to prevent overheating during exertion or chilly stops. Lofted fibres trap warm air.

Fast-Drying & Breathable
Breathable construction regulates body temperature, wicks moisture and dries rapidly, Features hydrophobic yarn that dries quickly. Ideal for unpredictable weather.

Lightweight
Extremely lightweight and designed to compress effortlessly into packs without bulk.
How does it work?
This insulation technology that represents a viable synthetic alternative to natural down. The innovative ThermoPro filling uses specially constructed fibres to simulate down construction, delivering comparable heat retention properties.
Lightweight, high loft, and quick-drying for effortless efficiency in cold and wet conditions.
ThermoPro is a hollowfibre loose fill designed to mimic the performance of down. Filling the garment with loose fill rather than sheet adds flexibility & packability and the added loft creates more air pockets for a more thermally efficient insulation. Made from 100% recycled polyester, synthetic fills have the advantage over down in that they can cope much better with wet conditions and maintain some insulation even when fully saturated. They are much easier to dry and also to launder when needed.
High‑performance insulation built to protect you in the coldest conditions.
Be prepared for the cold, with sub-zero temperatures the norm during winter seasons. In summer as the ice thaws, temperatures sneak over the 0-degree threshold, where you’ll be rewarded with meadows of wildflowers and migrating animals. Packable insulation and lightweight layers are perfect to regulate your body temperature from day to night.