This kids’ snorkelling top is made of flexible neoprene and offers freedom of movement and UPF50 sun protection at the same time! With a snorkelling top, you can snorkel / swim for longer. The neoprene foam and the other components keep you comfortable and protect you against the sun, without interfering with your movements in the water. Choose a top for longer and more comfortable excursions/ swim classes. We bought it for our daughter for swimming lessons. She is petite and would freeze in the pool quite quickly, hence didn’t enjoy the lessons!!! Once the top was on - no cries and fully enjoyed the entire lesson. Highly recommended!!! We didn’t use it in sea, hence it’s in an excellent condition!!! Nearly as new!!