Product details Fabric type Beanie- 67% Bamboo Viscose, 28% Organic Cotton, 5% Spandex. Liner- 50% Bamboo Lyocell, 40% Silver, 10% Spandex Care instructions Hand Wash Only Closure type Pull-On Pattern Solid About this item NATURAL FIBERS FOR MAXIMUM COMFORT & QUALITY: Crafted with our Oeko-Tex EcoShield Tech E M F bamboo Lyocell liner, and Organic cotton and Bamboo Viscose Blend outer (Certified by the manufacturer), our fabric offers superior softness, breathability, and eco-friendliness, making it perfect for all-day wear. THIRD PARTY LAB-VERIFIED: The EcoShield fabric contains up to 20% pure silver fiber, and has been evaluated across a broad 30 MHz10 GHz frequency spectrum. Independent testing recorded values as high as 99.8 percent within the measured range, confirming the fabrics strong electromagnetic performance qualities while remaining soft and breathable. DISCREET LINER WITH FULL COVERAGE: Our unique liner design provides 360 comfort and extended coverage around the ears. With bamboo fabric against your skin and the silver layer discreetly woven inside, you get the best of both worlds- comfort and style, without the medieval look. ONE SIZE FITS MOST: Designed to comfortably fit most big kids and adults. Most heads reach near-adult size around age 10, making this a great choice for teens and adults alike. This beanies flexible fabric adjusts to various head sizes, without feeling tight or loose, adapting perfectly to an average-sized adult head. THE PERFECT ‘SLOUCH’: Weve taken the time to design a slouch beanie with just the right amount of fabric for that effortless, relaxed fit. With careful attention to size and shape, this beanie offers the perfect slouch-comfortable, stylish, and made to impress.