NN02306 This is a trekking waterproof baseball cap made with GORE-TEX PRODUCTS material, a waterproof and breathable fabric. Waterproofing is enhanced with 13mm wide seam sealing. The long, rounded brim helps to maintain its shape even when wet, reducing rain from blowing in. The cotton-like texture and basic design and color variations make it easy to coordinate. This item is versatile and can be used for trekking, outdoor festivals, and everyday wear. ■Color: K (Black) ■Size: F ■Suitable Size (Head Circumference): F (56.5～59.5cm) ■Brim Length: 7.8cm ※Please note that there may be slight variations in the finished size depending on the product. ■Material: Nylon Span Tassar GORE-TEX Fabrics (Outer: 100% nylon, Middle layer: ePTFE, Inner: 100% nylon) ■Country of Origin: China ■Features: Baseball cap type / Rounded brim ■Features: Waterproof function GORE-TEX PRODUCTS/ Garments designed with GORE-TEX fabrics are waterproof, windproof, and breathable. They are durable and maintain protection and comfort from wind and rain. Available in 2-layer and 3-layer constructions. Worn about twice. There are slight sweat stains. I tried soaking and washing, but they didn't come out. Please check images 3, 4, and 5.