I didn't have much hope for this when it arrived vacuum packed and thin. However the thing actually works! even without a powerbank the jacket is still warm due to the reflective lining and air pockets. Warning There were several dangling threads that I decided to burn off with a lighter, the thread quickly burnt down to the fabric that started melting. so not flameproof. A fire hazard such as a Lithium battery in your pocket could make a disaster.

I didn't have much hope for this when it arrived vacuum packed and thin. However the thing actually works! even without a powerbank the jacket is still warm due to the reflective lining and air pockets. Warning There were several dangling threads that I decided to burn off with a lighter, the thread quickly burnt down to the fabric that started melting. so not flameproof. A fire hazard such as a Lithium battery in your pocket could make a disaster.

I didn't have much hope for this when it arrived vacuum packed and thin. However the thing actually works! even without a powerbank the jacket is still warm due to the reflective lining and air pockets. Warning There were several dangling threads that I decided to burn off with a lighter, the thread quickly burnt down to the fabric that started melting. so not flameproof. A fire hazard such as a Lithium battery in your pocket could make a disaster.