The GSOC Keep the Sea Plastic Free Patch is a Silver Award Project created by Catalina Alonzo of Troop 1085 in Irvine, California. Earning the patch will help Girl Scouts become aware of the problem of plastic pollution in the ocean, and take steps to help keep the sea plastic free. Click here for details on how to earn this patch. Patches are sew-on with a diameter 2 ¾”.