The Mercurial is the narrowest Nike and the Phantom 6 the widest. The Tiempo sits in between, with a wide midfoot and heel but a low toe box. With a wide foot, start with the Phantom 6 and give the Mercurial a miss.
The narrowest Nike last, with low volume and a low toe box. A speed boot for narrow feet.
The widest Nike last, with extra height in the toe box and a roomy heel. The knit upper stretches.
Wide in the midfoot and heel, with a low and pointed toe box.
Put Nike Mercurial vs Phantom vs Tiempo side by side on fit and the picture is clear: the Mercurial is the narrowest, the Phantom 6 is the widest, and the Tiempo sits in between, with a wide midfoot and heel but a low toe box. If you have a wide foot, start with the Phantom 6. If your width sits in the midfoot and heel and your toes are not high, the Tiempo Maestro works too. With wide feet, give the Mercurial a miss.
Below we put the three ranges side by side zone by zone, and flag where the sources disagree. Our verdicts are based on manufacturer information, fit notes from retailers and what players report.
Nike itself describes the Mercurial as snug and says it can be uncomfortable on wide feet. For a roomier fit, Nike points you to the Phantom and the Tiempo. That squares with what the sources show: the Mercurial has a narrow, low-volume last, the Phantom is wide and the Tiempo is wide through the middle. How sizing varies between lines is covered in how Nike football boots fit.
Nike does not make a separate wide range. So you choose on last and material, not on a label.
The table sets the three lines side by side, zone by zone.
| Model | Forefoot | Instep | Heel | Material | Size | Best for |
|---|---|---|---|---|---|---|
| Nike Mercurial Vapor and Superfly | Deliberately narrow last, low pointed toe box | Low volume, stiff tongue that does not stretch | Wraps tightly around the foot, the tongue adapts to a narrow heel | Knit with almost no stretch | Snug, half a size up for more room | Narrow to standard feet, speed players |
| Nike Phantom 6 (Low and High) | Extra toe height and forefoot width | High volume, knit tongue that stretches | Wide midfoot, the Low has a particularly roomy heel | Knit, no break-in period | About a quarter of a size long | Wide feet, high instep, flat feet, kids |
| Nike Tiempo Maestro | Low, pointed toe box | Low volume | Wide, round, open heel | TechLeather, does not stretch | True to size, do not size down | Wide midfoot and heel, flat feet |
| Nike Tiempo Ligera | Same family, U-shaped throat | Separate tongue, adjustable | Suits wide and narrow heels | TechLeather | No separate advice found | Anyone who wants a separate tongue with some adjustment |
The Nike Phantom 6 is wider through the toe box than any Mercurial, with extra toe height and forefoot width. The Nike Mercurial Vapor has a low, pointed toe box and comes up time and again in fit comparisons as the narrowest boot. The Nike Tiempo Maestro tapers to a low, pointed front.
So if you have high or long toes, the Tiempo scores lower than its width would suggest. It is still a good choice for a wide midfoot.
The Phantom 6 has plenty of volume and suits a high instep. Its knit tongue stretches with your foot but leaves little room for adjustment. The Tiempo Ligera has a separate tongue and is easier to adjust. The Mercurial has a stiff tongue that does not stretch and is no good for a high instep.
At the heel, the Phantom Low is particularly roomy, which lets a narrow heel slip. The Tiempo Maestro has a wide, round heel. The Mercurial wraps tightly around the heel and suits a narrow one. There is more on this in football boots for narrow feet.
On the Vapor Elite and the Tiempo Legend 10 Academy, Nike states that the boot fits snugly and that you can order half a size up for a roomier fit. The Phantom 6 runs a quarter of a size long and needs no breaking in. The Tiempo Maestro is true to size, and you should not size down.
None of the three lines uses a material that stretches like leather. Atomknit, Flyknit and TechLeather give little or no permanent stretch, so the size has to be right from day one. Do not go up a size for width, because that only brings heel slip. If you are caught between two sizes, the between two sizes tool can help.
The soleplate belongs to the version, not the line. The Phantom 6 Elite and Pro come in FG and AG, the Academy in MG, TF and indoor. The Tiempo Maestro Elite comes in FG and AG, the Ligera in FG, TF and indoor. The Mercurial Vapor Elite comes in FG, AG and SG.
For 3G and 4G pitches, pick a version with an AG, MG or TF plate. Not every colourway is made in every soleplate, so filter by surface at the retailer. There is more in our guide to wide football boots for artificial grass.
Within a line, the cheaper versions usually get a thicker upper. The Tiempo Maestro Academy uses FlyTouch, which is not as thin or soft as the Elite material. The Phantom 6 Academy has NikeSkin with a natural fit. Whether every version shares the same last is not confirmed for each line. Elite, Pro, Academy and Club explained runs through the tiers.
For flat feet and a high instep, the Phantom 6 comes out best of the three, thanks to its volume and wide midfoot. The Tiempo Maestro has a wide midfoot but low volume. The Mercurial suits neither. Read more in football boots for flat feet and football boots for a high instep.
For the Mercurial Superfly, sources report that it is a touch roomier than the previous generation and that players with very wide, flat feet might consider half a size up. That does not make it a wide boot: in head-to-head comparisons the Superfly is still named the narrowest. So we keep it down as narrow.
On the Tiempo Legend 10 and the Maestro, buyer reviews are split: some call them tight and narrow, others say they are good for wide feet. Our verdict is that the midfoot and heel are wide and the toe box is low.
Kids with wide feet should start with the Phantom 6: its junior sizes consistently come up wider, whereas the Mercurial junior is the narrowest Nike. There is more in football boots for kids with wide feet. For the whole Nike range, see Nike wide football boots. You can also compare Nike Tiempo vs adidas Copa, or use the football boot adviser to get a pick for your own foot.
The Nike Phantom 6. It has extra height in the toe box, a wider forefoot, a wide midfoot and a roomy heel. The Mercurial is the narrowest.
No. The Mercurial Vapor and Superfly have a narrow last, low volume and a low, pointed toe box. For wide feet, Nike itself steers you towards the Phantom or the Tiempo.
In the forefoot and toe box, yes, thanks to the extra toe height. Through the midfoot and heel both are wide. The Phantom also suits a high instep, which the Maestro does less well.
The Phantom 6 has the most volume and fits best. The Tiempo Ligera has a separate tongue. The Mercurial does not suit a high instep.
The Phantom 6 runs about a quarter of a size long. The Mercurial is snug, so order half a size up if you want a roomier fit.
The Phantom 6. Its junior sizes consistently come up wider, while the Mercurial junior is the narrowest Nike.
The knit gives under load and springs back, and it softens with wear. There is no break-in period, but do not expect it to stretch for good.