The TD300 model is the cooling bandana apart of the Tuff & Dry series by Occunomix. By utilizing cooling technology, this lightweight fabric will reduce the effects of heat stress by converting moisture in cooling satisfaction. The TD300 features a lightweight material that should be tied in back in order to ensure a close comfortable fit for the head. One size available that should be able to fit most. Essential for whether your outside or hot environment like a kitchen. The TD300 can be worn on it's own or underneath any additional head protection like caps, hard hats or hair nets.