(1)Outside: Waterproof beryline oxford textile.
(2)Inside: Foamed polyethylene, Aluminum plate film.
Reflective Tape: 3M
Fitted Equipment: With light and whistle
Thermal Protective: After immersing in the 0℃~2℃static water for 6h, the body temperature shall not be more than 2℃ lower than the normal level.