Boys versions (size 0 - 18) of our adult shirts. A link at the bottom of each adult shirt will indicate if a boys version is available, and if so, in which sizes. Currently we carry Orange, White, Light Blue, Maroon, Navy Blue, Natural Manta, White Manta, Light Green, and Pink. SIZING. The even-numbered numerical sizes of the Boys Guayaberas (0-18), do not strictly correspond to age, nor to typical US sizing. Best treat them as relative indicators only. NOTE: BOYS SHIRTS RUN SMALL. The sizing in boys shirts runs smaller than typical US sizing. Please compare one of your child's shirts that does fit well, measured flat, with the specific measurements of our guayaberas listed below, (and also under the Boys section on our Guayabera page). Failing that, consider ordering one or two numerical sizes larger than whatever US size you would normally buy. Below are some measurements of Boys shirts to give an idea of how these sizes go: Measurements of boys' guayaberas, laid flat: Size 2: Top of collar to hem = 16". Across shirt at widest point at underarms = 12". Sleeve opening = 4". Size 4: Top of collar to hem = 18". Across shirt at widest point at underarms = 13". Sleeve opening = 5". Size 6: Top of collar to hem = 19". Across shirt at widest point at underarms = 13.5". Sleeve opening = 5". Size 8: Top of collar to hem = 20.5". Across shirt at widest point at underarms = 14.5". Sleeve opening = 5". Size 10: Top of collar to hem = 21.5". Across shirt at widest point at underarms = 15". Sleeve opening = 5.5". Size 12: Top of collar to hem = 23". Across shirt at widest point at underarms = 15". Sleeve opening = 5.75". Size 14: Top of collar to hem = 24.5". Across shirt at widest point at underarms = 18". Sleeve opening = 6". Size 16: Top of collar to hem = 25.5". Across shirt at widest point at underarms = 18". Sleeve opening = 6.5". Size 18: Top of collar to hem = 26". Across shirt at widest point at underarms = 19". Sleeve opening = 7". (smallest adult) Size 34: Top of collar to hem = 27.5". Across shirt at widest point at underarms = 20". Sleeve opening = 7.5". If we still get the wrong size - EXCHANGES: ALL SALES ARE FINAL. However, GUAYABERA SHIRTS ONLY may be exchanged for correct size, within 10 days of purchase. Please send us an email indicating what size/color you need instead, so we can make sure it's available, and hold it for the exchange. Shirts sent without authorization will not be refunded or returned. Authorized exchanges will please mail the shirt (with a note including the order number and size/color required) to our store address at: CORAZON 2318 Waugh Dr. Houston, Tx. 77006. We will ship out the exchange as soon as the return shirt is received in good order.