The most common question we receive is "How do I know what size to choose?" It's an important question! The right fit is key to receive the benefits of wearing Pony Tail Sportswear. We made a short video as a guide and have some quick tips here: Men: Use your belt size Women: Use your riding jean size Both: If you are on the margin, go down a size! Pony Tail Sportswear should fit like a glove — too baggy or loose will not provide the full benefits of the product. Happy Riding!