XGO Flight Deck LS Crew Neck Yellow Small 1F11K-S-41. XGO FR products are built to outperform the competition meaning they're constructed from materials that are tested against the most demanding of conditions. The patented XGO Flight Deck Crew Neck is made from a patented blend of Modacrylic FR Rayon and Spandex and provides superior wicking and moisture management. This shirts durability and breathability makes it a popular choice from pilots to everyday wear. Plus it's incredibly lightweight so it can be worn directly against the skin without chafing or causing irritation. Plus it has a clean seam next-to-skin construction that reduces friction and irritation keeping you calm and focused on the task at hand. This XGO Flight Deck LS Crew Neck is also quick-drying lightweight durable and won't shrink which makes it a great addition to any wardrobe. Specifications for XGO Flight Deck LS Crew Neck: Manufacturer: XGO Men's Clothing Size: Small Sleeve Length: Long Age Group: Adults Apparel Fit: Regular Gender: Male Color: Yellow Application: Baselayer Top Fabric/Material: Patented blend of Modacrylic FR Rayon and Spandex Condition: New Quantity: 1 Sleeve Type: Long Sleeve Features of XGO Flight Deck LS Crew Neck Inherently FR At Yarn Level - FR Protection For Life Of Garment ASTM D6413Standard - No Melt/No Drip Superior Acclimate Dry Moisture Management Ag47 Anti-Microbial Protection UPF UV Protection - 25+ Rolled Shoulders and Under Arm Gussets - Increased Mobility / Reduced Irritation Clean Seam Next-To-Skin ComfortExtra Length (Body) Durable Breathable & Wont Shrink. Tagless back label Package Contents: XGO Flight Deck LS Crew Neck Phase 1 FR Flight Deck Strong Crew