The cotton in your shirt has been 'Mercerised' - and that's a good thing because you'll feel how it gives your shirt a rich and silky finish. And you'll see how it allows the cloth to absorb more dye, thus making the colours richer, brighter and deeper. And don’t worry that you may lose this in the wash. The 'Mercerised' cotton actually offers greater resistance to multiple washes, keeping the colours bright, sharp and unchanging over time. In fact, your floral is a hardy perennial that will bloom for years.