this item is a Speedo Men's Solar 1" Brief (style number 8-7300165001) in size 30. It is a classic bikini-style swim trunk designed for competitive swimming, training, and recreational use. Product Specifications Style Name: Solar 1" Brief. Color: Black (indicated by code 001). Size: 30. Fabric: Typically 78% Econyl (recycled nylon) and 22% Lycra Xtra Life spandex, or 80% nylon/20% spandex depending on the specific manufacturing batch. Origin: Made in Sri Lanka. Key Features Durability: Uses LYCRA XTRA LIFE™ fiber, which is engineered to last 5–10 times longer than standard spandex and resists sagging, bagging, and damage from chlorine or sun lotions. Design: Features a 1-inch side seam for maximum freedom of movement and minimal drag. Sun Protection: Provides UPF 50+ "Block the Burn" protection from UV rays. Fit: Includes an interior drawstring for a secure fit and 9-thread flatlock technology for a smooth, comfortable feel.