These single layer under suits are designed to go under your normal undersuit to add an extra layer of protection but not to restrict movement as other thicker layers will.
The special fibre, absorbs and transports moisture outward, away from the skin.
The breathable fabric allows air to reach the skin, kepping it dry,cool,regulated and heat controlled.
-Fits your body like a second skin
-Double stitched soft seams
-Moisture absorbing dacron-fibre made out of 100% polyester