Personalized T-Rex 3rd Birthday Toddler Full Zip Hooded Jacket. T-Rex 3rd Birthday! A cute T-Rex dinosaur holds a bright red balloon to celebrate the three year olds third birthday! Adorable gift! 7.5 oz., 60/40 cotton/polyester. Jersey-lined double-needle hemmed hood. Pouch pockets for all their treasures. Coverstitched shoulders and armholes. Coverstitched rib waistband and cuffs.