We have developed this second-skin top for children to comfortably discover the coastal seabed for over 25 minutes in waters >21°C. User comfort: 1.5 mm neoprene foam on the front for sessions over 25 minutes. Easy dressing: Lycra dorsal insert and collar to facilitate getting it on and off. Sun protection: UPF50 sun protection Freedom of movement: The fabric (polyamide/elastane) sleeves make swimming movements easier