Most schools all over the country choose the same styles and colors for their uniforms. Unfortunately the manufacturers & distributors sometimes run out of stock in some of these styles, colors and sizes given the high demand.In order to fulfill our customers orders in a timely manner sometimes we choose a different style or brand to substitute those items out of stock. We always do our best to pick the best possible match, but sometimes the substitutes may have slightly differences in color tones, measurements and design. If you prefer us not to choose any alternative products, please inform this to us as soon as you place your order. If you choose not to use alternative options, your order may be delayed until the manufacturer & distributor get restocked which could be within weeks or months after you place your order.