Detailed Product Description

(Features)

As cooling vest

- Patented latest cooling (ice) vest last coolness around 8 hours (others is around 3 to 4 hours) and also 16 hours available when changing spare cooling pack.
- 6 hours available under bad conditions like shipyard, iron mill.
- Feels cool as soon as you put it on.

As warming vest

- Patented latest warming vest last warming around 3 hours and also 6 hours available when changing spare warming pack.
- No additional expenses for battery and hot pack compared with others.
- It does not need silver cover when warming.

(Specification)

Duration time: around 8 hours for cooling & around 3 hours for warming when one pack
Weight: 1180 gram
Material: outside of cooling (warming) pack was made of TPU material harmless to body, not PVC.
Size: free

(Composition)

Vest, cooling (warming) bag (patented, with fourfold space ), cooling (warming) pack of 2 pieces (one is for spare)  
& silver cover ( prevents 99% of condensation for ice bag and cover it on cooling side of ice bag for preventing condensation)