To use this T-shirt, simply put it on like any other shirt. It's great for casual outings during the Easter season. When it comes to maintenance, you can machine wash it in cold water with like colors. Tumble dry on low. Avoid using bleach as it may damage the puff vinyl design. Keep it away from sharp objects to prevent tears. This unisex shirt comes in a standard sizing, so you can choose the size that fits you best according to the usual measurements.