For warmth and comfort in sub-zero conditions, this thermal vest is insulated with a specialized synthetic fill: our one-of-a-kind Mammut LOOPINSULATION, made of recycled rope scraps. Combined with a recycled wind- and water-repellent outer fabric, this cozy layer offers the protection you need and marks an important step towards achieving a more circular economy, and responsible production with the lowest possible impact on the environment.
Lightweight, breathable, and reliable even when wet, Mammut LOOPINSULATION jackets are built with 100% recycled insulation from industrial rope production offcuts and recycled PET. Made to keep warmth close through shifting temperatures.
Polyester-based rope offcuts from industrial rope production are gathered – materials that would otherwise be discarded.

These offcuts are then untangled into single strands which are brushed together and combined with recycled plastic.

The end result is fluffy polyester sheet padding and cluster fill, which creates warming insulation for our jackets.
