Thermal Protective Aids is a heat insulation bag/suit type used in liferaft or lifeboat for keep warm in cold sea environment. also for  rescued drowning people to keep arm when wind blowing the body.

It is made of polyamide compond with Aluminum foil and polyster fiber. it can be used in -30~65C temperaturer. the heat conduction is less than 7800W/(m2k).

It also have a good feature of water proof.