Adidas apparel sizing vs Nike's


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i've always kept myself open to adidas apparel but the few several times i have, sizing has been an issue...i got a regular t-shirt for a birthday once and it was a size medium but when i put it on it was felt like a large or even bigger

i've had 2 other instances with adidas apparel for jackets but this top looks pretty appealing to me and i'm wondering whether to go with a small or medium (i usually wear medium in my nike tennis apparel, as well as normal apparel)

any feedback from those who wear adidas apparel will be appreciated :)


Adidas make everything huge and Nike makes everything small, even shoes. My preference is Adidas shoes, Nike clothes.