Review: Mammut Crag IN Jacket
Briefly

The Crag IN jacket stands out as a versatile cold weather option, utilizing 100% recycled PFC free DWR coated polyamide for its outer shell. Its robust insulation offers warmth without clumping during washes, thanks to a sewn-in design. While it's noted for being highly water-resistant, its weight and size when packed may be less favorable compared to others. Additionally, Mammut’s Material Management Lead acknowledged its Loopinsulation's impressive technical properties but suggested alternatives for more active scenarios. The brand continues to innovate in the 2024/25 season with new jacket options featuring this insulation technology.
I can imagine washing it more frequently than my traditional puffer jackets, although being polyester, there remains the annoying issue of microplastics in the water system.
Helena Theba, Material Management Lead at Mammut, told me that the Loopinsulation insulation had 'impressive technical properties that are directly comparable to industry standards like Primaloft Gold'.
The combination of 100 percent recycled PFC free DWR coated polyamide outer shell and plenty of wadding makes it a great choice as a daily cold weather jacket.
For the 2024/25 season Mammut has launched a couple of other options featuring Loopinsulation, which is both waterproof and insulating.
Read at WIRED
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