Prudent layering pays off bigtime when bone chilling weather presents itself, and Grundéns® Men's Grundies™ base layer collection was designed to help you retain a vital resource, body heat. Offering a variety of material weights combined with HeiQ™ Anti-odor properties the Grundies™ collection provides a modular layering system that can be worn in many combinations depending on the conditions you’re facing. Lightweight Base Layer Performance Top HeiQ™ anti odor properties Moisture-wicking Non-pilling UPF 50 sun protection Crew neckline Raglan sleeves for maximum flexibility Flatlock seams to prevent chaffing 3M™ reflective chest logo Machine wash cold; tumble dry low Product Features: Fabric:Lightweight Performance Grundéns Men's Grundies Lightweight Crew Neck Long-Sleeve Base Layer Top