In the latest Shackleton Briefing, Explorer and Product Designer Charlie Smith introduces Active Insulation, our newest category.

Tuned for moving fast and light from the valley to the summit, our Active Insulation collection provides highly breathable, windproof warmth for all-day adventures. Erebus Jacket and Hawkes Gilet are made to move from recycled ripstop outer fabric and Clo VivoOcean insulation with patented perforations for 30% greater breathability.

Harness-compatible and technically adaptable for multiple activities, they excel as both windproof outer layers and midlayers within a three-layer system whether you’re fastpacking in the Lake District, climbing fourteeners or ski touring in the Alps.