Diesel Underdenim Cool 360 UMTEE Randal T Shirt In Blue, A cotton stretch t shirt in a blue denim look fabric with top stitch detail in white. A ribbed crew neck and short sleeves with the signature Diesel logo printed on the left of the chest in navy. Constructed with Cool 360 technology which draws moisture from the skin allowing it to evaporate faster than a regular fabric. 40% Cotton, 50% Polyester And 10% Elastane. The Brand New Stylish Fashionable Diesel Underwear, Boxer Shorts And Accessories Live Online UK.