Koloa Surf Co.(tm) Rainbow Wave Logo Long Sleeve T-Shirts-S Koloa Surf Co.(tm) Rainbow Wave Logo T-Shirts, Sweatshirts and Hoodies Shirts: 6.1-ounce, 100% cotton. Double-needle sleeves and hem. Taped neck and shoulders Sweatshirts:8-ounce, 50/50 cotton/poly pill-resistant air jet yarn. Double-needle stitching Hoodies:8-ounce, 50/50 cotton/poly pill-resistant air jet yarn. Double-needle stitching. Koloa Rainbow Wave on Chest Logo on Chest. Printed with Koloa Surf Co.(tm) Logo Inside