75% Cotton, 25% Flax Button closure Machine Wash Material: This shirts made of 70% cotton + 30% flax great fabric, lightweight, and soft touch, do not shrink and fade, moisture-wicking. Features: Casual button up shirts, stand collar, simple style, solid color, loose fit, long sleeve, rounded hem. Occasions: These long-sleeve stylish loose fit shirts could be easy to match with dress pants, slacks, chinos, and jeans. Perfect for spring, autumn and summer, fashion style, formal work, business wear, everyday casual wear, beach wear and etc. Washing Instructions: Machine wash cold setting keeps colors vibrant and ensures long-lasting durability, do not bleach and iron. Size Tip: Please check our last size chart picture before ordering. If you don't want to slim fit, please choose the one step bigger size than your ordinary size.