Forma boots run mostly to everyday US sizing, but there are some points you need to consider as you may need to size up. As with every brand, there is always some small sizing variation, especially with US sizing. Euro sizing is the most consistent sizing standard worldwide, so if you know your EU size, that is always a better reference.

Motorcycle boots are designed to be firmly fitted to hold the boots in place and give maximum feel of the controls. They are more rigid for protection with internal and external plastic components. This protective design will make the boots feel smaller or tighter than your soft comfy sneakers. Soft sneakers or regular shoes will generally accommodate wide or large volume feet, but in most cases you will need to size up as moto boots have little give or side flex. When sizing up, don't worry, the boots will not be too long as there is only a ¼ inch difference in length between most sizes. Also consider that most motorcycle boots are designed longer in the toe box to give extra frontal protection, and that can give the impression that the boots are narrow when in fact you only need the next size. And with waterproof boots from any brand, the thicker WP membrane slightly reduces the foot chamber volume, giving the boots a tighter fitment. 

There is not one official Footwear Size Standard that all manufacturers follow, so do not assume your size! Measuring your feet seems to be the most successful way to receive the correct size first time around.

*The best method to measure your feet is to place your heel against the wall and measure out to the end of your big toe, then add 1 inch to give you the inside measurement of our recommended size. (smaller sizes only need to add 3/4 inch) 

We give the internal boot measurements below so you can more accurately establish your size. We cannot guarantee that you receive the correct size first time because every foot shape is different, and every fitment is 4Dimensional (length, width, volume and instep height) and unfortunately it's only possible to accurately measure feet length.

Please factor in all these points when making a decision on your motorcycle boot size.


95% of our customers receive the correct size first time, but if you find that you need to exchange, dont panic we will work quickly to exchange sizes.      



-38eu  4 mens 10.04" inside length
-39eu  5 mens 10.23" inside length 
-40eu  6 mens 10.43" inside length 
-41eu  7 mens 10.63" inside length
-42eu  8 mens 11.02" inside length 
-43eu  9 mens 11.22" inside length
-44eu 10 mens 11.42" inside length
-45eu 11 mens11.81" inside length
-46eu 12 mens 12.00" inside length 
-47eu 13 mens 12.20" inside length 
-48eu 14 mens 12.40" inside length  
-49eu 15 mens 12.60" inside length  
-50eu 16 mens 12.80" inside length



-35eu  4 womens  9.45" inside length 
-36eu  5 womens  9.64" inside length 
-37eu  6 womens  9.84" inside length 
-38eu  7 womens 10.04" inside length 
-39eu  8 womens 10.23" inside length 
-40eu  9 womens 10.43" inside length 
-41eu 10 womens 10.63" inside length
-42eu 11 womens 11.02" inside length
-43eu 12 womens 11.24" inside length 



    -32eu    1 youth  8.85" inside length 
    -33eu 1.5 youth  9.05" inside length
    -34eu    2 youth  9.25" inside length
    -35eu 2.5 youth  9.45" inside length 
    -36eu    3 youth  9.64" inside length 
    -37eu    4 youth  9.84" inside length 
    -38eu    5 youth 10.04" inside length 
    -39eu    6 youth 10.23" inside length 
    -40eu 6.5 youth 10.43" inside length
    -41eu    7 youth 10.63" inside length 


      *Forma boots are protective, but they cannot protect you from every injury.

      *Please ride safely and choose boots designed for your riding environment!