Stormtrooper undersuits made and approved by trooperbay.com use a high quality specifically blended cotton & lycra fabric for enhanced moisture management and thermal protection. The blended fabric reacts to all kinds of different conditions, from excessive heat to extreme cold. In warm weather, perspiration is removed from the skin surface keeping the wearer cool, conversely in cold conditions the natural thermal properties of the fabric allow heat to be retained. These suits are perfect for cosplay and trooping anywhere! Two way zip for easier toilet trips & a low temp wash non iron care instructions. 

Sizing FAQ, If you are at the top end of both chest & height in the size chart choose the next size up if possible, if you are inbetween sizes always go for the next size up, if you are tall with a small chest size choose your height for sizing.