No problem there. You may return your item(s) within 60 days from delivery date and exchange it for different size.All you have to do is contact us via email at help@iamsuperhero.com stating:Your order #Which product(s) from your initial order you would like to exchangeDesired size(s) of the replacement item(s)and we will send you detailed exchange instructions.Item(s) must be unworn & unwashed. You know what we mean guys; keep it free of stains and signs of wear. All labels must still be attached to exchange the goods.