Features: 1. Thermal underwear set is made of ultra-soft polyester that feels cozily soft is completely non-irritating and keeps you comfortably warm to beat the chilly weather. 2. Breathable fabric is perfect to keep sweat away. At the same time the lightweight thermal clothing maintains your body heat at a cool temperature by wicking moisture away from your skin. 3. Four-way stretch and gives you the needed warmth without thick or heavy layers. The suit can be repeatedly washed without shrinking. Machine wash. 4. You can easily slip your daytime clothes or pajamas over the thermal base layer . Tights or shirt can be used as base layer or worn alone. 5. Extreme ultralight warmest top and tights Sets makes your favorite cold weather activities more pleasant. Whether you are hiking biking hunting snowboard ski and camping or other outdoor. Specification: Fabric: Polyester Size: One Size Female models: suitable for 40-75kg Male models: suitable for 50-90kg Notice: 1.Due to the different monitor and light effect the actual color may be a slightly different from the picture color. 2.Please allow 1-3cm differs due to manual measurement. includes: 1 x Thermal Underwear "