ROCKMARK Men's Winter Snow Boots, Warm Mid Calf Waterproof Durable Boot,Non Slip Thermal Insulated Climbing Shoes for Hiking & Ice Fishing & Snow Trekking & Outdoor Work(11, Black) Fitness & Cross Training The sockliner is produced with B0D8MJ9F3L The sockliner is produced with the solution dyeing process that reduces water usage by approximately 33% and carbon emissions by approximately 45% compared to the conventional dyeing technology it adds a layer of insulation Perfect winter boots for varied of outdoor uses with excellent performance in cool autumn and cold winter with multifunctio An ideal companion for walking and skiing with great relax and power