Colombia, a major skiwear manufacturer in the United States, pioneered the concept of 3-in-1 clothing in 1982 and its iconic 3-in-1 jacket Bugaboo four years later. Colombia uses more of its own scientific and technological fabrics, which is not very professional, and few mountaineering teams wear Colombia to climb snowy mountains, which is not so much a professional outdoor brand as a positioning leisure outdoor.
 
TURBODOWN and Omic Reflective Technology are two types of warmth technology in Colombia, TURBODOWN is mainly used in down jacket making, and Omic ThermalReflective Technology is used on the underlayer to enhance warmth. Columbia claims to use this technology, with the addition of a "silver heat reflecting far-point material" to reflect body heat efficiently, but the actual effect is not so significant.
 
Omic thermal underwear is lightweight, itself is relatively light and thin, in addition, the underwear fabric is woven from polyester fiber and spandex, the biggest advantage is breathability and durability, the warmth is not satisfactory, the price of more than 600 yuan, the cost performance is not high. However, the reflective strip design behind the underwear in this series is also worthy of recognition, which makes athletes safer in low-light environments, and the cut is strong and comfortable.