The Long-Sleeve Thermal T-Shirt from Cat and Jack? brings a staple to his cool-weather wardrobe. Made from a lightweight fabric and boasting a thermal-knit construction, this boys' long-sleeve T-shirt brings cozy comfort to his days and nights, while the banded cuffs offer him a snug fit. A great pairing piece with a variety of his bottoms, he can also layer it under his thermal vests or puffer jackets for an extra layer of warmth. We designed this product using at least 20percent recycled polyester (excluding trimmings, ornamentation, interlinings, and linings; see below for full fiber content), a fabric that?s created by turning old plastic into new polyester fibers. Making products with recycled polyester helps prevent plastic waste from ending up in landfills? another way we're committed to promoting sustainability. Color: Green. Gender: male. Age Group: kids. Pattern: Solid. Material: Cotton.