Abaco Castaway sunglasses golden bamboo frame pacific blue flash polarized lenses. Abaco`s castaway is a unique pair of classic style sunglasses. The unisex classic gets a modern update with a golden bamboo frame and pacific blue flash lenses. Spring hinges ensure a snug, comfortable fit, and they are so lightweight they float if dropped into the water. Impact-resistant polarized polycarbonate lenses block glare and provide uv400 protection for delicate eyes. 61-39. Castaway. 50mm-17mm-140mm.