2MM neoprene, EPE foam filling, no inflating needed, effectively prevent puncture, Protect your children. CE certification, complies with the safety directive EN13138-1:2014. Bottom adjustable seat belts increase strength and safety. Accessories made of neoprene can be moved and increase comfort. Loving and unique cartoon print, make your kids more eye-catching. Color splicing, your child will love it and enjoy water activities every time. Kids swim vest is designed to learn to swim and cannot protect against drowning. Use only under constant supervision. Kids Swim Vest Neoprene Swimming Aid with Adjustable Safety Strap for Age 1-3 and 3-6