The Xcel Kids Lycra Rashguard is UV 50+ Rated Four Way Stretch 8 ounch Lycra design by Xcel from yarns to finished product for the most high performance, durable & affective protection from the sun. Sizing A rash vest, like a wetsuit needs to fit skin tight (although not be uncomfortable). Any rashie or suit will stretch slightly as it ages so a snugg initial fit is vital. All Xcel rashvests come with a " Loop it or loose it" system so you can tie your rashy to your boardies to stop it riding up your stomach. If you require a particular colour please email us mailto:team@yakwax.com