100% super soft combed interlock cotton T-Shirts. These lap shoulder T-shirts are made of the finest cotton available. This practical body is perfect for layering and will keep your precious baby warm and comfortable. You will be impressed with softness of our 100% combed cotton and make it the only T-Shirt that you will want your precious baby in. All Spasilk layette feature our super soft 100% cotton. SpaSilk fits infants Preemie to 24 Months. Preemie-up to 5 lbs, up to 2.3 kgs Newborn-5 to 9 lbs, 2.3 to 4.1 kgss 3 Months-9 to 12 lbs, 4.1 to 5.5 kgs 6 Months-12 to 18 lbs, .5 to 8 kgs 9 Months-18 to 21 lbs, 8.0 to 9.5 kgs 12 Months-21 to 24 lbs, 9.5 to 11 kgs 18 Months-24 to 27 lbs, 11 to 12.4 kgs 24 Months-27 to 30 lbs, 12.4 to 13.8 kgs