Onitsuka Tiger low-profile retro sneaker in purple with a thin Solyte midsole

Pros

• · Several Onitsuka Tiger owners on r/Sneakers report true-to-size fit.
• · Serrano wearers describe the shoes as super comfortable, one calling them surprisingly comfortable for how thin they look.
• · A wearer reports the sole feels surprisingly soft over 25,000 steps in Tokyo without sore feet.
• · The Serrano last is slightly wider with a rounder toe, so medium-wide feet can take their normal size.
• · Real leather stretches roughly 3–5% after about 30 days, which buyers credit for an easier break-in than the canvas/leather Mexico 66.

Cons

• · Reddit users say the Mexico 66 is not suited to long-distance walking—thin leather, thin sole, little support.
• · The catalog notes buyer feedback that the rubber outsole is not very slip-resistant, so caution in rain.
• · The full-leather Serrano upper is stiff when new and typically needs about 3–5 days of break-in; some wide-footed users find the heel lining thin and get initial heel rubbing.
• · Because the thin retro sole has limited cushioning, longer walks call for a thin arch-supporting insole.

Fit notes

The Serrano last is slightly wider with a rounder toe than the Mexico 66, so medium-wide feet take their normal size. The tapered Mexico 66 last pinches wide feet; sizing up adds length, not width, and can cause heel slip. Several owners report true-to-size. Sizes run 36–45 including half sizes.

Buy if

You want a light, flat-soled retro sneaker for casual wear, like breathable leather with a leather lining, and accept thin cushioning—adding a thin arch-support insole for longer walks. Medium-wide feet suited to the Serrano-style last can take their normal size.

Skip if

You need real cushioning or support for long-distance walking, or dependable grip in rain. Feet that pinch in the tapered Mexico 66 last should not size up expecting width—length grows, width does not, and heel slip can follow.