Birding Birdwatching Eye Chart T-Shirt Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 58% Cotton, 42% Polyester Imported Machine wash cold with like colors, dry low heat Designed to look like an eye chart. Beautiful gift for a birder. Fit: Slim (consider ordering a larger size for a looser fit) This tee is perfect if you're searching for a unique bird watching gifts, bird lover gifts, bird related gifts, bird lover gift, or shirts with birds on them. Great if you are interested in ornithology and recognizing birds in the sky by their silhouettes. This premium t-shirt is made of lightweight fine jersey fabric