Designed for optimal temperature regulation, the lightweight and compressible Aenergy Hybrid Insulation Jacket is intended for mountain activities in cold conditions. You can wear it as a thermal layer under a hardshell or alone as an outer layer. The unique Octa lining fabric, made entirely from 100% recycled materials, provides the right balance between warmth and breathability. It insulates exceptionally well even when wet and simultaneously regulates body climate by releasing excess heat. This allows for a wide temperature range to be covered without the need to add or remove layers. It is combined with a breathable, lightweight woven fabric that protects against wind, as well as windproof, lightweight inserts made of elastic storm fleece with a waffle structure for increased freedom of movement and breathability. The Aenergy Hybrid is the top choice for demanding activities in cold environments.