Boys Vest Sizes: 3T = ( 3 - 4 years old ) , 4 = (5 - 6 years old ) - if unsure go one size larger. * Boys Vest Sizes: 8 = (7 - 8 years old ) , 10 = (9 - 10 years old). - if unsure go one size larger. * Red * To view similar items click on View shipping rates and policies in the Product Detail Section Below and then click the BuyYourTies Storefront link. You can then use the search feature. * 30 Day Money Back Guarantee