Alpine performance demands gear that keeps pace. Mammut LOOPINSULATION Active is an adaptive thermal layer that responds directly to your movement, keeping you comfortable through every phase of high-intensity adventures.
The structure expands during active movement to continuously release excess moisture and air while stretching with your body.

Fibers trap essential warmth the moment you pause or when temperatures drop, keeping your core protected from the chill.

Reclaims industrial rope offcuts to give waste a second life – zero added chemicals and 48% less CO₂ emissions than virgin polyester.*

*The estimations regarding CO, calculations were modeled using the Higg MSI 3.7. They were calculated by Mammut Sports Group AG, are not third-party verified, and are based on generalized industry data and assumptions at raw material level.


Polyester rope offcuts from industrial production are collected, untwisted into single strands, and brushed together with zero added chemicals. We then reweave these fibers into an adaptive, accordion-like padding built specifically for the enhanced breathability, stretch, and stop-and-go demands of climbing, skiing, and ski touring.