The Omius cap combines modern design with innovative cooling technology. Specifically designed to support the body's own cooling, it provides comfort in high temperatures—whether during sports or on the go. The cap is lightweight, ergonomically shaped, and features a silicone grid that holds the 20 separately sold cooling pieces directly against the skin. These stones made of porous graphite with a hydrophilic coating increase evaporation, creating an immediate and long-lasting cooling effect. The large size (~58 cm) offers an optimal fit for most head sizes without pressure, and the low weight of only 55 g makes it comfortable to wear even for extended activities. Features: Designed for 20 patented cooling pieces, sold separately, lightweight ergonomic design, silicone grid for direct skin contact of cooling pieces, cooling pieces material: porous graphite with hydrophilic coating, head size: large ~58 cm, cap material: polyester, nylon and spandex, weight: 55 g, promotes the body's own cooling and enhances comfort in heat.