Dirt Bike Boots Sizing Information

We have a comprehensive boot buyers’ guide on MXstore which can be found HERE this answers every possible question you may have regarding motocross boots, but read on to get the easy guide on selecting the right size boot for you!

All of our boots at MXstore are in US sizing unless otherwise specified, please do not mistake US for UK sizing as they are a couple of sizes different, European sizing is easy to see as they are up in the 44-48 digits. 

Different boot brands are labelled with different sizing. Either US, UK or EUR. Unfortunately there are no hard and fast rules and as every foot differs in size and shape there is no definitive sizing chart. If you are close to the MXstore retail outlet, nothing beats trying them on. We have socks available and helpful staff to find that perfect fit. If you are buying online follow this simple guide to find the closest match.

Check your shoe sizing

The inside of most shoe tongues are labelled with one or more sizes. It may even be printed on the inner sole or the underside of the shoe. Be sure to take note of the sizing scale (US, UK or EUR).

Convert if necessary

All boots listed on mxstore.com.au are listed with the sizing scale. If the listed boot uses a different sizing scale to the size on your shoe you can use this motocross boot sizing chart to make the conversion.

Choose your size

We have consistently found it to be more comfortable to buy a pair of boots one size larger than your shoe sizing. Having said that, if you are on the smaller side of your sizing, or even swing between shoe sizes dependant on the shoe brand, then always buy a boot that is the size of the largest shoe you wear. For example – If you swing between 9US and 10US then a 10US boot should fit nicely. If you are always a 10US then an 11US boot might be a more comfortable fit. 

Larger is safer

Remember there is next to nothing you can do for a boot that is too small. Your feet will also swell when you are riding so remember those small boots are only going to get smaller. If your boots are a little large, you at least have buckles for adjustment. 

Boots should fit as tight as possible/comfortable

Large boots should be filled with some thick socks and the buckles should be tightened accordingly. Those motocross boot buckles play an extremely important role in providing stability to the ankle joint by helping to prevent excessive lateral movement. To keep your ankle protected they need to be tight. A loose boot is not serving its purpose so please keep those buckles tight. 

New motocross boots will stretch so bear that in mind when choosing your size but please note they will only stretch width-wise. They cannot get longer toe-wise. Please don’t think that a slightly short boot will be more comfortable over time; it won’t. As your boots age and the leather stretches your boots will get looser so your boot buckles need to be tightened regularly. If you can easily snap your buckles closed they are not tight enough. The buckles should at least require some force to fold closed and you should feel your boot squeeze your ankle (comfortably of-course). Remember to replace busted buckles ASAP. They are cheap to buy and easily replaced.


People talk of a ‘BREAK IN PERIOD’ when talking about new motocross boots. This is period of time immediately after purchasing new boots which can be days or weeks in which boots can feel slightly tight and even difficult to ride in until they are ‘worn in.’ Part of the break-in period is simply a matter of your body becoming used to the new boots. The other part is boot stretch as explained above. 

For a comprehensive boot sizing chart at MXstore, click HERE

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