Personalized I'm So Rad-Ish - Fun and Quirky Design for Rad People T-Shirt. Know someone who loves a good joke and has a rad sense of humor? This design is a perfect gift for the person who always knows how to keep things fun and lighthearted. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.