Personalized I Love Biking Vintage Bike Fitness T-Shirt. Cute bicycle T-Shirt - Navy Blue with I love biking quote for anyone who enjoys riding a bike 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.