The NYO adult life jacket features the newly developed NeoLite 3D material. This material has a similar look and properties to neoprene but is significantly lighter, more breathable, and feels pleasantly soft. The flexible buoyancy foam of the life jacket provides sufficient buoyancy and all-around impact protection. Large armholes ensure enhanced freedom of movement while paddleboarding, kayaking, wakeboarding, or jet skiing. Thanks to the two sturdy straps with quick-release buckles, you can perfectly adjust the lightweight neoprene buoyancy vest to your body, preventing any slipping. Simply secure the straps with the belt clips to keep them from dangling. Choose the appropriate size based on your chest circumference: Sizes (Chest circumference, Body weight): XS (82-86 cm, 30-50 kg), S (86-92 cm, 40-60 kg), M (92-98 cm, 50-70 kg), L (98-103 cm, 60-80 kg), XL (103-111 cm, from 70 kg), 2XL (111-120 cm, from 70 kg), and 3XL (120-127 cm, from 70 kg).