This is a natural byproduct of the material application through the manufacturing process

these shoes are designed to provide comfort and versatility for the man on the move

It's the perfect addition to your classic BIRKENSTOCK sandals

Wind resistant fabric

MEN'S 7 DOWNIE ST FW114 NAVY LONG SLEEVE SHIRT Mule This is a natural byproductProduct Details: Size Chart Crafted using premium fabrics, our contemporary fit sport shirts are designed for the discerning gentleman. Dressed up with a sport coat and trousers, or worn casually with denim, our shirts pair with just about anything. 7 Downie St. sport shirts are darted to create a clean, tailored, semi tapered silhouette. 97% cotton, 3% elastane. Spread collar. Fused collar stays. Contrasting trim details on cuff and inside collar