- Lightweight and packable
- Insulated with PrimaLoft Sport high-loft insulation
- Articulated arms
- Internal waist cinch
The Kelvin jacket from Sitka Gear is the perfect combination of warmth and packability. Insulated with Primaloft Sport high-loft insulation, the Kelvin will keep you warm on the coldest and nastiest of days. PrimaLoft insulation also means that this jacket is ultra-lightweight and packs into itself. The Kelvin is also designed to layer under a shell layer for extreme conditions. The articulated arms ensure that you have full range of motion, while the internal waist cinch keeps body heat in and high levels of scent from escaping.