Everyone that i asked also agreed with me :s
Maybe UK is a nation of weird feet.
I think I can explain why he feels like that about the Adidas shoe size compared to the Nike shoes size.
He's from the UK and he says everyone he knows in his tennis club in the UK feels the same way about the shoe sizes - Adidas runs smaller than Nike - the complete opposite compared to what people form the US feels like.
I'm from Europe, but I always buy based on US sizes and not UK sizes, because I buy most of my golf and tennis gear in the US.
If you looke at the specifications for instance for the Adidas Barricade V and the Nike Breath Cage II shoes and compare the US and UK sizes, you will understand the reason why people from UK feels the totally opposite as to what people in the US feel about the Adidas shoe sizes.
I use a size US 13 in Nike shoes - and this is a fit on the slightly tight side, and an Adidas Barricade size US 13 therefore fits me a little less tight and more comfortable - but both are OK. I like a tight fit, when I play tennis, so Nike US 13 is perfect, but Adidas US 13 is also OK, but a little on the 'loose' side.
Inside my Nike Breath Cage it says US size 13, but UK size 12 and EURO 47.5.
But, and this is the reason why people from the UK feels this way about the Adidas shoe fit inside my Adidas Barricade V, it says US size 13, but UK size 12.5 and EURO 48.
So if I was a guy from the UK buying a pair of Adidas shoes, and I fit into a Nike size UK 12, I would just get an Adidas Uk size 12 also. But an Adidas UK size 12 is the equivalent to a US size 12.5, and NOT a size US 13.
So the UK guy feels like he needs to buy ½ size larger to get the same fit as the Nike shoe, he normally buys in the UK.
A guy from US won't understand this, because he of course always buys based on the US shoe size and NOT the UK shoes size. Adidas and Nike translates the shoes sizes from US to UK in slightly different ways and this is what makes the UK feels the Adidas runs small in size and while the US guys feels like they run on the larger side compared to a Nike shoe.
Hope you get my point :lol:
Check these two pages out:
http://www.tenniswarehouse-europe.com/descpageMSNIKEH-NBC2WBR.html
http://www.tenniswarehouse-europe.com/descpageMSADIH-AB5WBS.html
UK example:
Say a guy uses UK size 12 in Adidas, which is Euro 47/US 12.5.
He wants a pair of Nike shoes and of course gets a size UK 12 in Nike.
Problem is that the Nike UK size 12 is equivalent to Euro 47.5/US 13
So of course the guy, who normally uses Adidas UK size 12, will feel like the Nike UK size 12 has a larger fit than his Adidas - because they in fact ARE larger.
The Nike UK 12 is a Euro 47.5 and the Adidas UK 12 is a Euro 47, so the Nike UK 12 not only feels larger IT IS IN FACT LARGER - ½ a size larger, so he's correct. It's not a size larger, but half a size larger, when you buy it is based on the UK size
US example:
Say a guy uses US size 12 in Adidas, which is Euro 46.5/UK 11.5.
He wants a pair of Nike shoes and of course gets a size US 12 in Nike.
Problem is that the Nike US size 12 is equivalent to Euro 46/UK 11 - so in this case the Nike shoe is half a size smaller than the Adidas shoe.
So of course the guy, who normally uses Adidas US size 12, will feel like the Nike US size 12 has a tighter & smaller fit than his Adidas - because they in fact ARE smaller.
The Nike US 12 is a Euro 46 and the Adidas US 12 is a Euro 46.5, so the Nike US 12 not only feels smaller, IT IS IN FACT smaller - ½ a size smaller, so he's correct.
It's not a size smaller, but half a size smaller, when you buy it is based on the US size