From all-day ski sessions to snow day neighborhood gatherings, kids need warm gear to keep them outside doing what they love. Our Kids' Classic Thermal Merino Base Layer Pattern Crew uses soft Mid 250 interlock knit, great for layering in cool conditions. Now your kids can be as warm, dry, and comfortable as you are in your Smartwool® base layers. Smartwool Classic Thermal Merino Pattern Base Layer Crew Top Kids' Features & Specifications: Slim Fit Crew neck with set-in long sleeves 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance Flatlock seam construction designed to eliminate chafing Knit in Vietnam: 100% Merino Wool Care: Machine Wash Warm Gentle Cycle. Dry Clean. Do Not Bleach Tumble Dry Low Cool Iron As Needed Purchased new, only worn for travel. EUC, washed cold, laid flat to dry.