The D2 from Troy Lee Designs is a high-quality inner padding for bicycle helmets, specifically designed for sizes XL and XXL. This accessory not only provides additional comfort but also contributes to the optimal fit of the helmet. Made from 100% polyester, the material ensures a pleasant feel and breathability, which is particularly beneficial during longer rides. The black color gives it a simple and timeless aesthetic that matches various helmet designs. With a head circumference of 60 to 62 cm, this padding is ideal for cyclists who value a personalized fit. The product is made in China and is an essential accessory for anyone looking to upgrade or replace their helmets. The D2 headliner is a practical solution to enhance wearing comfort and extend the lifespan of the helmet.