These men's casual shirts are great for daily wear. To put them on, just slip your arms through the sleeves and button up from the bottom. When it comes to sizing, remember to check the size chart as different suppliers may have different measurements. If it's an Asian - sized shirt, choose a bigger size for a better fit. For maintenance, machine - wash them in cold water with like colors to keep the fabric in good condition. Avoid using bleach as it can damage the print. Hang them to dry or tumble - dry on low to prevent shrinking. With proper care, these shirts will last you a long time and keep you looking stylish.