The Thermolator Kids Thermolator Performance Baselayer Pant is the ideal thermal piece for all day warmth and comfort while being out in the elements.These versatile long johns feature an ultra-soft, midweight fabric utilizing our features ClimaSense Thermoregulation Technology that automatically adjusts to your body temperature. It does this be trapping air to maintain warmth when your body starts to cool down. When your aerobic activity increases and your skin temperature rises, the fabric allows moisture vapor to escape to maintain comfort.Whether skiing, mountaineering, sleeding or playing in the snow, Thermolator is functional performance at its best! The Kids Thermolator Performance Pants goes perfectly with the Kids Thermolator Top from the Kids Thermolator collection. Comfort Waistband Flat Seams Thermo-Regulation Breathable UPF Protection Moisture Management Plant Based Odor Control 4-Way Stretch Print: 86% Recycled Polyester, 14% Spandex Melange: 44% Recycled Polyester, 44% Waterless Dye Polyester, 12% Spandex Black: 86% Waterless Dye Polyester, 14% Spandex