Our T-shirts, sleepsuits and hats are all 100% organic cotton. Baby Lap-Shoulder T-Shirt Sizes Baby Sleepsuit Sizes Knot Hat Sizes 6 Months 12 Months 18 Months 24 Months 6 Months 12 Months 18 Months X-Small Small Medium Girls T-Shirt Sizes Boys T-Shirt Sizes 3 Years 4 Years 5 Years 6 Years 3 Years 4 Years 5 Years 6 Years ETHICAL PRODUCTION: We only use suppliers who conform to the following manufacturing ethics: No child labour, payment above minimum wage, environmentally friendly production (non pollutant) and no use of harmful chemicals which can remain in products and be hazardous to health.