Merino Skins provide the power to keep you going. These are the super warm short sleeve t-shirt/top thermals you want to be wearing this coming freezing winter! Suitable for both men and women! Thermoregulation and moisture control of the body - The key to greater performance is keeping the bodies temperature at its optimum comfortable level. Merino Skins underwear constantly monitor the bodys temperature and moisture levels and naturally adjust body temperature to maintain the optimum comfortable level. Merino Skins in cold or damp environments instantly generates heat through a unique molecular process known as heat of sorption. In hot or warm environments, Merino Skins release moisture as vapor, thus cooling down the body. Truly natures miracle thermostat. Superior wicking abilities - Merino Skins rapidly absorb sweat and pump it through to the outer layer where it quickly spreads and evaporates. This powerful wicking sweat transport system keeps you dry throughout strenuous exercise- up to 27% more than synthetics. Absorbs odors - Merino Skins evaporates perspiration and thereby eliminates the breeding ground for odor causing bacteria. - Superior wicking abilities - Absorbs odours - High level of inbuilt UV protection - Dries quickly - Static free - Flame resistant - Natural environmentally friendly fibres - Fully machine washable And best of all, proudly MADE IN AUSTRALIA Care Instructions: Warm Machine Wash Do not bleach (no chlorine) Warm Iron May be tumble dried on warm heat Note: This garment is unisex styled. Eg. Men Small size = Womens Medium size. Sizing: CHEST INCHES CHEST CMS WAIST INCHES WAIST CMS SIZE 26-28 30-32 66-71 76-81 24-26 28-30 61-66 71-76 X-SMALL SMALL 34-36 82-92 31-34 77-86 MEDIUM 38-40 93-102 35-38 87-96 LARGE 42-44 103-112 39-42 97-107 X-LARGE 46-48 113-122 43-46 108-117 XX-LARGE