An immersion suit, or survival suit (or more specifically an immersion survival suit) is a special type of waterproof dry suit that protects the wearer from hypothermia from immersion in cold water, after abandoning a sinking or capsized vessel, especially in the open ocean. 

QG Marine supply several kinds of immersion suits. One type without neck support need to be worn with life jacket to make your face up, the other type immersin suit is with neck support, no need to wear a extra life jakcet.  

All Immersion suits comply with SOLAS standards, got approved by DNV.GL, issued with EC certificates.