Quipco Tundra Fleece Pullover is a simple and perfect companion to keep your body warm during walks, treks, rides and hikes at high altitudes. Full zip opening gives plenty of flexibility. High collar helps in covering the neck from getting hit by the wind. If the windchill is high OR the weather is closer to 0*c and you are not able to tolerate the cold, then please make use of layers. Wear appropriate layers of clothes over or under the fleece jacket to beat the cold.