Automatic and additional manual control - Suitable for persons from 40 kg - According to ISO 12402 - 3. IMPORTANT INFORMATION: Lifejackets reduce the risk of drowning but do not guarantee survival. Test the lifejacket before use to check its performance. Designed for swimmers. Train before using this device. Store the lifejacket in a dry, well - ventilated place. Under normal conditions of use, the life of this product is estimated at 10 years.