100% Organic Cotton Full two-way zip Zipper guard at chin Runs Small. Size up for the best fit For child’s safety, garment should fit snugly Size Chart: Size Height (in) Weight (lb) 0 to 3 mos. Up to 22 in Up to 14 lbs 3 to 6 mos. 23 to 26 in 15 to 20 lbs 6 to 12 mos. 26 to 29 in 20 to 25 lbs Questions? Leave a comment below! See my other listings to bundle and save.