I want to buy some running shoes . Maybe New Balance .   Why do you need running shoes ? You aren't a runner .   But I exercise at the club . And I use the stepping machine.So I need good running shoes .   That's not the same.Maybe you want to buy running-shoe-style shoes , but not real running shoes .   What's the difference ?   There isn't much difference . But there is some difference.For one thing , real running shoes are much more expensive.They have very lightweight materials.They ' re designed for serious runner   And what are running-shoe-style shoes ?   They look like running shoes.They have the same shape . And you can use them for running too.But they're not so serious . They aren't designed for serious runners.You can use them for exerce   But they aren't as light , right ?   That's right.If you want a really lightweight shoe , you should buy a high-quality running shoe .   That's what I want.For exercising at the club . I can even spend 100 dollars on them . I don't care .   But it's a waste of money . You won't really run in them ! You don't need such a shoe to use exercise machines . It's just a waste of money .   My sister has New Balance running shoes . I want shoes just like hers . I don't care if they're expensive . And they look cool too .   Well , do what you like.There are different kinds of New Balance shoes though.You don't have to buy the most expensive .   I want the best.My sister said good shoes are very important . For support . They support your feet .   Your sister is a fitness expert , huh ?   No , but she exercises more than me .   I really think you are stubborn about some things.But here . Let's look at the New Balance shoes .   Here it is . This is what my sister has .   Yes , that's it . That's their top model .   I wonder if they have my size .   Well , we can wait for the assistant to help us , or we can look through the boxes down here . What is your size ?   Here in America , it's six . 