I bought this in a lucky bag, but the size didn't fit, so I put it away! The "J" above the "M" might have meant Jr., I wondered? (Later I found out it was a Japanese size. ゜(゜´ω`゜)゜) They're all lovely, and you can wear them as loungewear or for sports, so I hope you can wear them well! I'm also listing these on other sites, so please forgive me if there's a discrepancy. A set-up with the distinctive adidas logo, a casual design perfect for everyday wear. - Colors: Pink - Colors: Black - Colors: Navy/Pink - Design: Hooded zip-up - Logo: adidas logo - Design: Graphic print - Design: Logo print Thank you for looking.