Football boots adidas X: the speed range

What is a football boot adidas X?

The adidas X is the line of football boots created by adidas focused on speed and quick changes of pace. On this page, you'll find the X models in the catalogue, from the high-end version to more accessible options, available in adult and junior sizes depending on the references.

The concept of the range is simple: a thin and lightweight upper, a ridged sole designed for forward propulsion, and a tight fit to keep your foot in place during swift movements. This type of boot is ideal if you play as a winger, attacking full-back, or deep striker, and generally if your game is based on running rather than ground duels.

Crazyfast, Speedportal, Speedflow: which generations can you find on this page?

Three generations of the X line coexist in the catalogue: the X Crazyfast, the newest of the three, the X Speedportal that came before it, and the X Speedflow, which is even older. Each generation represents a complete overhaul of the model by adidas, with its own upper, sole, and fit.

Practically, this means two things for you. First, you’re not just comparing colours: switching from a Speedflow to a Crazyfast means changing construction, so try them on again if you have tricky feet. Secondly, earlier generations remain perfectly usable on the pitch, as they were designed for the same purpose, and many players prefer to stick with the construction they know. Series of colours that accompanied competitions, such as the Heatspawn Pack, also appear in these generations.

Since 2024, adidas has brought back the F50 as the speed silo in place of the X Crazyfast. The X line is therefore no longer renewed every season: this page collects the remaining available references, making it a good place to watch if you’re looking for a high-level pair without going for the latest release. To see the new range that followed, check out the F50 page.

Elite, League, Club, Messi: how to choose the finish?

The X models come in several levels of finish that share the same name but target different uses. The Elite versions, as well as the older .1 labels, correspond to the model worn in competitions: finest materials, stiffest sole, lightest weight.

The League and .2 versions take the design and spirit of the range but use more durable materials and come at a more affordable price: this is the sensible choice if you play two to three times a week and want a pair that lasts a whole season. The Club versions are the most accessible in the line, suitable for amateur club play or a comeback. The Messi models, like the X Crazyfast Messi or the League Messi, keep the range's construction with the player's identity and dedicated colours.

A guide to avoid disappointment: an Elite version isn’t necessarily the right buy if you play on hard ground all year. The thinner the shoe, the quicker it gets marked. It's better to have a suitable intermediate finish for your pitch than a competition pair that wears out in a few months.

FG, SG, MG, TF: which sole for your pitch?

The suffix of the reference indicates the type of ground the sole is intended for, and this is the most important criterion for your choice. FG boots are designed for dry or slightly damp natural grass, the most common situation in France.

• FG: moulded studs for natural grass in good condition, the most versatile use for a match or training on lawn.
• SG: detachable studs, often a mix of metal and plastic, for muddy and waterlogged pitches in autumn and winter.
• MG: multi-ground sole, designed to switch between natural and synthetic grass without changing boots.
• TF: short, numerous studs for older generation synthetic and artificial pitches, also handy for casual football.

If you play on one pitch, go for the corresponding sole. If you alternate between your club's grass and training on synthetic, an MG avoids the need to buy two pairs.

Lace or no lace: what changes with the LL version?

Models with the LL label are laceless football boots, with the upper closed by an elastic sock and a hold band. The surface of the foot is completely smooth, with no laces or flap to interfere between the foot and the ball.

In practice, the choice hinges on fit. Without laces, you can’t adjust the tightness: the pair must fit perfectly right from the try-on, which works well for fine and regular feet. With laces, you can adjust the tension zone by zone, preferable if you have wide feet, a pronounced instep, or a different volume between the two feet. Both constructions exist in the X line, and neither is superior to the other.

Predator, F50, Copa: the other adidas shoe lines

The X line is just one of adidas's families of football boots, and the others cater to different player profiles. You can check them out separately:

• The Predator, the range built around striking and ball control, for players looking for grip on the ball.
• The F50, the speed line that followed the X at adidas, in the same spirit of lightness.
• The Copa, the brand's leather range, focused on comfort and flexibility of fit.
• The Sala, flat-soled models designed for futsal and indoor play.
• The Al Rihla Pack, a series of colours related to the ball of the same name, available across multiple ranges.

For an overview before you decide, the adidas shoes page gathers all these families.

Where to find good deals on adidas X shoes?

Football boots are grouped in several permanent sales pages on the site that you can check directly rather than waiting for an announcement. The football shoe promotions and the shoe deals page bring together pairs that have had a price change, while the shoe clearance focuses on end-of-line and remaining sizes, which fits well with a range like the X.

The timing plays a big role. The Black Friday football shoes kicks off the season, followed by the end-of-year holidays, then the winter shoe sales and the French Days in spring. These are the times when older generations of a range, here the X Speedportal or the X Speedflow, are most likely to appear in these selections.

Two other pages are useful every day: the new football shoes for the latest arrivals, and the shoes shipped in 24 hours if you have an upcoming match.

Frequently asked questions

Does the adidas X still exist in 2026/27?

The X line is no longer the speed range continued by adidas: since 2024, the F50 has taken on this role in the brand’s catalogue. The X models remain available as long as there are sizes in stock, mainly in X Crazyfast, X Speedportal, and X Speedflow. If you want a new pair from this line, check the available sizes instead of waiting for a new release.

What size should I take for an adidas X?

The X line is a speed range, meaning it is narrow and snug-fitting, with little volume at the front. Many players stick to their usual sports shoe size, but a wide foot will be more comfortable in a range with a softer fit like the Copa. If you're torn between two sizes and you play in cold weather with thick socks, the larger size is often the more comfortable choice.

Can you wear adidas X SG on synthetic ground?

No, an SG sole with detachable studs is not made for synthetic: the long studs don’t anchor well, wear out, and put strain on the joints. On newer synthetic pitches, an FG or MG sole is more suitable, and on very old synthetic or stabilized ground, a TF sole does a better job. Save the SG for wet natural grass pitches.

Are the Messi models of the X range different from the others?

The Messi versions follow the construction of the corresponding X range, with colours and identity details unique to the player. They come in various finish levels and on different soles, from competition models to those for synthetic pitches. The choice comes first from your pitch and level of play, then from the design.

Is an adidas X suitable for a teenager?

Some references in the X line are available in junior sizes in addition to adult sizes, and are suitable for club play as long as the young player can handle a snug fit. For a first pair, an intermediate or accessible finish is more appropriate than a competition model, as it holds up better to heavy use and rapid growth. Make sure to check the sole according to the surface where training takes place.