Speed · FG
Mizuno Alpha I Made In Japan
A lightweight Japanese speed boot: narrow forefoot, low but rounded toe box, a low-volume midfoot and a deep, secure heel.
Do the Mizuno Alpha I Made In Japan run true to size?
The Mizuno Alpha I Made In Japan runs about half a size large. Most players should size down half a size.
Sizing
This model runs about a half-size large. Consider going down half a size for your ideal fit.
Fit at a glance
- Brand
- Mizuno
- Model year
- 2021
- Type
- Speed
- Surfaces
- FG
- Material
- Soft synthetic (Made in Japan)
- Sizing
- Runs a half-size large
- Forefoot width
- Narrow
- Toe box
- Low rounded
- Midfoot wrap
- Snug
- Heel lockdown
- Deep secure
- Arch support
- Neutral, Arched
Tends to suit
- Narrow foot
- Low toe volume
- Egyptian
- Greek
- Secure heel
- Asian
- Low volume
Watch-outs
- Wide forefoot
- High toe volume
- High midfoot volume
- Runs long
The fit, explained
Built on a narrow Japanese last that also suits Asian-shaped feet. The soft synthetic upper is pliable but gives little, so it eases pressure without truly stretching. Best for medium to high arches and lower-volume midfeet — a full, high-volume instep will find it tight. Runs about half a size long — size down half.
Best for narrow, lower-volume feet with a medium to high arch that want a locked-in speed fit.
Break-in: Minimal break-in; the synthetic upper holds its shape and won't relax much with wear.
Mizuno Alpha I Made In Japan — common questions
- Are the Mizuno Alpha I Made In Japan good for wide feet?
- Not ideally. The Mizuno Alpha I Made In Japan is cut narrow through the forefoot and suits slim to average feet best. Wide feet are likely to feel pressure across the ball.
- Do the Mizuno Alpha I Made In Japan need breaking in?
- The Mizuno Alpha I Made In Japan holds its shape. The upper gives little with wear, so how it feels on day one is close to how it will keep feeling — fit it correctly from the start.
- Who do the Mizuno Alpha I Made In Japan suit best?
- The Mizuno Alpha I Made In Japan suits feet wanting a narrow forefoot, low rounded toe box, snug midfoot wrap, deep secure heel. Speed boot on FG.
Fit characteristics are modeled from BootShapes’s boot data and are a guide, not a guarantee. For a personalized match, build your foot profile and overlay this boot on your own model.