sleeved turtleneck sleeves with wind protection Windshell Carbon Underwear, breathable and temperature-regulating in any climate. Air Shield technology protects the front of SIXS cold air torso: a thin windproof breathable fiber layer, creates a micro-air cushion to protect the body, without causing the classic greenhouse effect which increases perspiration. The high collar protects your throat by changes in temperature and cool breezes. Ideal for outdoor sports. Carbon fabric Underwear The technical leaders SIXS do they make you feel hot but not cold! Your second skin This garment is to be used in direct contact with your skin to provide the ultimate Wind-protection Overlaying two SIXS tissues, of different weight and fineness, it is possible to obtain an effective barrier against the cold air, guaranteed by the thin layer of moisture that is formed between them.