Hemp Brim Hat Hemp Hat with Brim, crocheted in Thailand Recycled Silk Cap Hats hand-knit from recycled silk saris. The colors of these hats vary somewhat from hat to hat. Most are red or have a lot of red in them. Recycled Silk Hats with Earflaps Hats hand-knit from recycled silk saris. The colors of these hats vary somewhat from hat to hat. Most are red or have a lot of red in them.