Our Signature “Channel Islands Circle” design is available on our long sleeve, 60/40%Â cotton/polyester blend t-shirt. This is an Island Packers signature design. The “Channel Islands Circle”design is one of a kind. Our Long Sleeve T-Shirt is a light weight 60/40 cotton/polyester blend and can only be purchased at Island Packers. The design is a snapshot of Anacapa Island from Inspiration Point looking west over the island. Available in sizes from X-Small to XX-Large. Back in blank.