Select your "chest size - waist size" combination above and you'll see all suits with your size in stock. This is a convenient way of shopping and saves time. Suits Outlets uses US standard men's size and all blazers and pants are true to size. All chest sizes come in three length: R(Regular), L(Long) and S(Short). An easy way to explain the difference between "Regular", "Long" and "Short" is, for "Short", both the sleeves and length of the overall jacket will be 1" - 1.5" shorter than "Regular", and same applies to "Regular" vs "Long".