Personalized Big Sis Alligator Girls Sister Announcement Toddler Full Zip Hooded Jacket. Give the new Sister in your family a cute alligator Toddler Full Zip Hooded Jacket - Black sibling gift with Big Sis slogan. 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.