Personalized Bike Bum Men's V-Neck T-Shirt. Bike bum text with a heart dotting the letter i in the word bike is a fun gift design for bicyclists at birthdays and holidays. 4.7 oz., 100% pre-shrunk cotton Narrow, set-in 1x1 mitered V-neck collar Shoulder-to-shoulder taping Double-needle stitched sleeves and bottom hem