The Hydrokids Swim Trainer Jacket is the perfect way to help your child gain confidence in the water.It encourages a horizontal swimming position and is shaped for comfort and ease of movement. It has a three stage zip release and rear fastening to avoid unsupervised removal.The buoyancy blocks inside the jacket are removable individually so that you can help you child gain confidence in the water.The jacket is made from Neoprene which dries easily and helps keep your child warm in the water.WARNING; WILL NOT PROTECT AGAINST DROWNING USE ONLY UNDER COMPETENT SUPERVISION. THIS PRODUCT IS NOT FOR USE IN BOATING.Size 1 Jacket is designed to fit children aged 1-2years, 11-15kg, 86-92cms tall.