Its riding gussets

Made from windproof

Key Features: Water Resistant | UPF 50 Rating | Satin Lining | Braided Band | Grosgrain Trim | Crown: 5 Inches | Brim: 3 1/2 Inches

Made from soft

Not only does this shirt look great

Men’s Montana Vest Size:MD Its riding gussetsThe Montana Vest is a versatile choice that dresses up or works hard alongside you. Made from soft, water resistant Sedona cloth and lined with cozy polar fleece, it combines comfort with functionality. Western yokes, besom hip pockets, and inside pockets keep the classic look while providing practical storage, and an adjustable back slide belt ensures a tailored fit. Key Features: Mens Snaps Western Yokes Besom Hip Pockets Water Resistant Polar