Mountain Khaki has announced that it will start using a new insulation material, called SeaWool Insulation, as well as a new SeaWool Yarn in a limited number of products in its autumn 2019 range, with a view to expand their use in 2020. SeaWool Insulation, made in a bluesign system partner mill, uses a proprietary heat process to combine crushed oyster shells with post-consumer recycled polyester fill insulation material. When combined with recycled PET bottles, discarded oyster shells result in SeaWool Yarn. The SeaWool Insulation material is said to offer a high warmth-to-weight ratio, and to feature anti-static, odor-blocking and quick-drying functionality. The outer layer of the new insulation material consists of robust hollow fibers while the denser middle layer maximizes insulation, resulting in low thermal conductivity and increased heat storage, Mountain Khakis said. The products using SeaWool Yarn will include the Pearl Street Flannel shirt and the Moran Shirt Jac, while the Triple Direct Jacket and Vest will contain 60 grams of SeaWool Insulation.

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