Dexter — INUTEQ PAC PCM Cooling Vest — 6.5 Celsius Constant Temperature Cooling at 6.5 Celsius. The INUTEQ PAC Dexter is the go-to phase change vest for industry applications. Inside the vest there are 4 pockets for bio-based PCM cooling packs. Side buckles allow a tight fit. Reactivation is easy. Switch to a new pack and reactivate the other pack by placing in a refrigerator, a freezer or ice water. These 6.5 Celsius packs will cool at a temperature of 6.5 Celsius and require a temperature of less than 6.5 Celsius to recharge. Weight: Just under 2kg. Sizing — Chest Small — 76-85cm | Medium — 86-95cm | Large — 96-105cm | XL — 106-115cm | XXL — 116-125cm | 3XL — 126-135cm | 4XL — 136-145cm Watch how to use video