This dual-purpose sun protection and warmth hat is designed for the autumn and winter seasons. Featuring innovative Jech Clo+ 3.0 gas-down filling, it provides lightweight yet effective insulation. The reversible design offers wind and water resistance on one side and a soft, plush texture on the other for maximum comfort. Tailored to fit head circumferences of 55-57cm, the stylish round-top design and adjustable ribbon ensure a snug and secure fit, keeping you cozy while maintaining a fashionable look. Key Features Sun Protection Technology:Equipped with UPF 50+ fabric, this hat effectively blocks harmful UV rays, offering long-lasting protection against skin aging caused by sunlight. The wide, round brim design shields your face from the sun. Gas-Down Insulation:Filled with Jech Clo+ 3.0 gas-down, this hat is lightweight yet highly thermal, maintaining warmth even in damp, cold environments. Its three-layer insulated structure traps heat and repels moisture, ensuring long-lasting comfort. Reversible Design:With two fabric textures, this hat can be worn two ways: one side offers wind and water resistance for outdoor activities, while the other side features a plush, velvety material for soft, skin-friendly comfort. Style and Comfort:Tailored to fit head circumferences of 55-57cm, the leaf-inspired round-top design enhances head shape, flattering both round and angular faces. The adjustable ribbon adds versatility, allowing you to customize your look while maintaining secure wear. Technology Sun Protection: UPF 50+: Blocks 99% of UV rays, preventing skin damage and premature aging caused by sunlight. Rounded Brim: Provides 360° sun protection, reducing the effects of reflected light, especially in snowy environments. Gas-Down Insulation: Jech Clo+ 3.0: Lightweight, moisture-resistant, and capable of raising warmth by up to 6.0°C, providing lasting insulation in cold and wet conditions. Three-Layer Gas-Down Structure: Evenly distributed warmth ensures no cold spots, keeping every part of the hat insulated. Dual-Sided Functionality: Outer Side: Windproof and water-repellent, suitable for light snow or rain. Inner Side: Soft, anti-static plush fabric, gentle on the skin, preventing shedding and static cling. Usage Scenarios Outdoor Activities in Autumn and Winter:Ideal for cycling, hiking, and other outdoor pursuits, offering both sun protection and warmth. Daily Wear:Versatile for commuting or everyday outfits, with reversible styles to match different looks.