Specifications: Fine workmanship, made of high quality material. Comfortable to wear, give you strong security. The buoyancy is increased. Suitable for swimming, boating, drifting, surfing, sea rescue, etc. Type: Life Jacket Foam Material: EPE Upper Material: Polyester Oxford Cloth Applications: Boating, Surfing, Sailing, Rafting, Swimming, etc Features: Durable, Big Buoyancy, with Whistle Size Details [Our Size S] Shoulder: 52m/20.47", Bust: 48cm/18.90", Hem: 68cm/26.77", Length: 50cm/19.69", Suitable Height: 120cm - 145cm/47.24" - 57.09", Suitable Weight: 25kg - 35kg (Approx.) [Our Size M] Shoulder: 68cm/26.77", Bust: 54cm/21.26", Hem: 88cm/34.65", Length: 55cm/21.65", Suitable Height: 155cm - 168cm/61.02" - 66.14", Suitable Weight: 45kg - 60kg (Approx.) [Our Size L] Shoulder: 72cm/28.35", Bust: 58cm/22.83", Hem: 90cm/35.43", Length: 55cm/21.65", Suitable Height: 170cm - 175cm/66.93" - 68.90", Suitable Weight: 60kg - 70kg (Approx.) [Our Size XL] Shoulder: 76cm/29.92", Bust: 62cm/24.41", Hem: 92cm/36.22", Length: 60cm/23.62", Suitable Height: 175cm - 180cm/68.90" - 70.87", Suitable Weight: 80kg - 90kg (Approx.) [Our Size XXL] Shoulder: 78cm/30.71", Bust: 62cm/24.41", Hem: 96cm/37.80", Length: 60cm/23.62", Suitable Height: 180cm - 185cm/70.87" - 72.83", Suitable Weight: 80kg - 90kg (Approx.) [Our Size XXXL] Shoulder: 80cm/31.50", Bust: 64cm/25.20", Hem: 112cm/44.09", Length: 63cm/24.80", Suitable Height: 185cm - 195cm/72.83" - 76.77", Suitable Weight: 90kg - 110kg (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Life Jacket(Included Whistle)