Full-zip opening so it's quick and easy to put on Fastens with press studs on the shoulders, with fabric reinforcement on the inside 2 small press studs on each shoulder for size 0-6 months and 1 press stud on the shoulder for sizes 6/18 and 18/36 months Yarn-dyed checks Fully lined in plain fabric Summer Special Cotton Gauze Baby Sleeping Bag, Checks, Oeko-Tex® - pink medium checks