Top-to-Bottom Layering Just like busy kids, the kids' Burton Lightweight Base Layer Set is designed to stretch, breathe, and dry quickly. It's the technical head-to-toe combo that'll keep your little ripper warm and dry whether they're on the mountain, the playground, or just sitting on the couch. Features: Plenty of Tech DRYRIDE Ultrawick lightweight knit is highly breathable and ultra-fast wicking to keep kids dry and warm. Everyday Feel A regular fit, non-tech look, and a soft hand give them a casual, everyday feel that keeps kids comfy anywhere. Low Environmental Impact Bluesign® approved materials reduce impact on humans and the planet during manufacturing. Tech Specs: Fit Regular Fit Features + Tech Chafe-Free Softlock Seams for Comfort Dryride Ultrawick™ Birds Eye Mesh Fabrication Quick-Drying and Highly Breathable Stretch 180° For Enhanced Mobility Imported Yes Fabric DRYRIDE Ultrawick Lightweight 100: 100% Polyester Warranty Lifetime Warranty Burton Kids' Lightweight Base Layer Set - True Black Crystals