The revolutionary Castelli Thermoflex 2 Kneewarmer Black boasts superior warmth and flexibility in dry weather, making it the perfect choice for any athlete. Its soft, stretchy fleece fabric and advanced construction with flat-lock seams ensure optimal comfort. With embossed Castelli wordmark logos, and dual-sided silicone gripper elastic at the top to prevent slipping, these kneewarmers are a must-have for any serious athlete.