When looking for cold weather PPE, beware of gloves and other products that give temperature ratings as "guarantees". Many factors play into body temperature, and one single solution can't guarantee the same results for every worker.
There's one industry standard, developed and used by 3M® (Thinsulate®) for cold weather temperature ratings, called the CLO system. All HexArmor cold weather safety products utilize this CLO system to help explain the various amounts of insulation in our products.
The HexArmor cold weather collection offers various levels of Thinsulate insulation to give you the perfect balance of warmth, safety and dexterity for your application.
To get a more in-depth look at CLO ratings click here: http://www.hexarmor.com/posts/when-the-weather-gets-cold-do-you-add-more-clos