The Mountain Warehouse Kids Camo Polar Fleece Base Layer Set, crafted with a blend of 95% Polyester and 5% Elastane for durability and comfort. This set boasts a stylish camouflage design, perfect for any adventurous youngster. With a classic crew neckline and long sleeves, it offers a snug fit for all-day wear. The Polar Fleece fabric ensures warmth in chilly weather, while the Anti-Pilling feature prevents the fabric from piling over time. Additionally, Isotherm technology traps heat to keep your child comfortable even in cold conditions. This set comes complete with one top and one bottom, available in various sizes: 22 inches for ages 2-3 years, 22.5 inches for ages 3-4 years, 24 inches for ages 5-6 years, 26 inches for ages 7-8 years, 28.5 inches for ages 9-10 years, 31 inches for ages 11-12 years, and 33 inches for older children aged 13 years.