The Bear Grylls Short Sleeve Technical T-Shirt, from Craghoppers, is from the official Bear Grylls Survival Range, it is a high performance lightweight insulating t-shirt that has moisture wicking proprieties to be able to keep you both warm & dry when you are on the move! This Bear Grylls short sleeve technical top can be worn as a base layer or as a technical t-shirt thanks to its high performance properties.