huckberry.com/store/wellen/category/p/63988-seawool-fisherman-sweater

A classic fisherman sweater knit with recycled plastic bottles and oyster shells Produced with a combination of recycled plastic bottles and upcycled oyster shells, Seawool is an incredible, cozy step forward for sustainable textiles. It shares many of the same qualities we love about a classic merino wool sweater—soft to the touch, temperature regulating, quick drying, antimicrobial, durable—while rescuing a great deal of waste from ending up in landfills and oceans. We love the serendipity of an old-school knit sweater that’s made with upcycled oyster shells, with all the cozy warmth and rugged durability we would expect built right in.