Combat cabin fever with warm layers that help kids stay outside longer. Our Kids' Classic Thermal Merino Base Layer Pattern Bottom uses soft Merino 250 interlock knit and all the benefits of responsibly sourced Merino wool, like temperature regulation and sweat management. These are the tights that your children need because warm, dry kids have way more fun. Smartwool Classic Thermal Merino Pattern Base Layer Bottom Kids' Features & Specifications: 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance Slim Fit Merino-covered elastic waistband adds comfort Flatlock seam construction designed to eliminate chafing Size M Inseam: 20" (51cm) Knit in Vietnam: 100% Merino Wool All items come from a pet free/smoke free home. Please don’t hesitate to ask if you have any questions :) Same day or next day shipping