I buy Asics 10.5 all the time and they were too tight. Had to send back 1/2 size larger. no chance of breaking. I compared to original reproductions from the period from REEBOK, PUMA, Adidas and Asics and the base shoe was shorter in toe length and width. Also, they tend to get your feet HOT, so use them for casual fun. Very comfortable but the tongue material doesn't breathe well and they are leather. Putting them on is like putting your feet in a sturdy sleeping bag. cozy! but toast! If you're looking for simple, old-school flats, try the ADidas Originals Seeley Men's Running Shoe and the PUMA Classic + Sneaker Men's Suede Sneaker for similar style and comfort. The Adidas Mens Advantage does warm up the foot a bit over time, so if you live in a hot area, skip this one.