The REC Insulated Zip Layer delivers lightweight warmth and freedom of movement with its stretch micro ripstop shell and unique baffled weave construction for enhanced heat retention. Featuring 4-way stretch, raglan sleeves, and synthetic fill insulation for superior thermoregulation, this versatile layer works under a shell or as a standalone. DWR coating and water-resistant YKK VISLON® zippers ensure lasting performance in variable conditions.