Worn once! Moisture Wicking, Anti-Microbial, Made with Recycled Matierials Each SeaWell™ Sweater reseeds up to 30 oysters & naturally filters up to 1,500 gallons of seawater every day. The first fisherman's sweaters made from a soft blend of recycled oyster shells, recycled water bottles, and cotton. Inspired by vintage style and classic comfort, these garments boast a ribbed construction to promote thermal regulation and lightweight warmth for windy days among the great outdoors. As seen on Shark Tank Ships from smoke free home. Fast Shipper!!