Set of four, for durability and economy, they are shipped DryPack,  to be hydrated before using (click here).  Expended cooling panels can be replaced when necessary. Vest are designed to be used with multiple layers of inserts. The vests and leggings come with 4 inserts and can accommodate  8 inserts using a double layer. Inserts can be charged over and over in a freezer and layered into the vests when extended time is needed. For the CM2000 and HeatShield II vests and Leggings. Extra set of four inserts are $35.00

Its layers in the vest that makes extended time possible. 

**Consider an Aluminum rack for your refrigerator freezer. **

     Click Here

 * In extreme heat, the panels cool you two ways.

      First phase shift of the cells charged in a freezer.

      A second pat. pending evaporative phase shift on the  surface.

Saves shipping and protects your Vest

We can Hydrate your vest for you. Just Ask