The upper of the 9060 December Sky sneaker is constructed with a combination of premium suede and breathable mesh materials. This blend allows for a balance of durability, flexibility, and breathability, ensuring a comfortable fit that can withstand daily wear. The midsole features advanced cushioning technology to provide superior support and shock absorption. The outsole is made of durable rubber, engineered to deliver traction and grip on various surfaces. The padded collar and tongue add an extra layer of comfort, reducing friction and preventing any potential discomfort or irritation.