Size Guide
We continue using a very simple size template, it is a simple rectangle, which you can draw yourself even if you do not have a printer. We recommend using this template to choose the correct size. 📊✅
We know that buying a shoe online and getting the size right is complicated, even when it is for you, you know your size, you have bought many shoes in your life and surely your foot has not grown for years. 🤷♀️
This becomes much more complicated when you have to find the right shoe for your baby, many doubts assail you... but here we are to try to solve them. 🙋
Thanks to the new last of our ferocious ones, the transition from one size to the next will be easier and more progressive. Your little one will be able to use and use his size until the end, so there won't be so much difference when moving on to the next one. 👟
The baby's foot grows quickly and its footwear should not oppress it or reduce mobility. 🦶💚
Calculate the size of your little one, a mommy ninja operation.
The fundamental thing, what is vital to get the size right, is that your little one's foot has enough space to grow in a healthy way but not too much and could interfere with their movement.
This operation to calculate the ideal size is something considered a ninja operation , since it is very unlikely that your baby will collaborate the first time in this mission.
Arm yourself with patience , be persevering and calm , if it can't be today... it will be tomorrow.
Communicate with your baby and anticipate what you are going to do so that he can understand it, prepare for it and "collaborate" with this operation.
After several seasons, we know how complicated it is to measure a baby's foot... so this season we recommend using our FIERCE Sizing Template , well printed, well drawn by yourself (it's a simple rectangle).
This operation to calculate the ideal size is something considered a ninja operation, since it is very unlikely that your baby will collaborate the first time in this mission.
Arm yourself with patience, be persevering and calm down, if it can't be today... it will be tomorrow.
Communicate with your baby and tell him what you are going to do so that he can understand, prepare for it and “collaborate” with this operation.
After several seasons, we know how complicated it is to measure a baby's foot... so this season we recommend you use our FIERCO size template, well printed, well drawn by yourself (it's a simple rectangle).

How to use the FEROZ Shoe size template?
- Download the size template corresponding to the shoe you want, print the desired size sheet and check with a ruler that it is printed to true scale.
If you don't have a printer, no problem: you can draw it yourself, since it's just a rectangle.
The number on the left of the template refers to the vertical size of the rectangle, margins included.< /li> with your body weight) on firm ground on the printed insole, resting your heel on the vertical surface. - Look down the length of the foot to see how far it reaches exactly, you can make a mark if you wish.
Then look to the side to check that the foot is inside the rectangle where the foot rests .
, since usually one is longer than the other. You should stay with the upper measurement.
- At this point, you can already see what the ferocious size of your baby is.

Tables measures Ferocious Shoe
If you need the measurements of our shoes, here below you can find the measurement charts of ferocious shoe.
We are going to explain the columns of our measurement chart.
- The first column indicates the size of our models.
- The second column indicates the length of the interior of the shoe (measurements of the insole, the shoe usually has between 1-2 mm more interior space). The third column indicates the recommended measurement for your little one's foot when you go to buy the shoes.
Ideally, your little one should have a space of 1 cm free between the end of the foot and the end of the shoe, so that the toes are free and have room to grow and live happily in our shoes.
As it is not always possible to have an exact 1 cm, we give you a margin between 0.8 cm and 1.2 cm.⚠️ If you have more to spare of 1.2 cm of space it is possible that the zap may interfere with your little one's steps, especially if he is a baby and has not yet reached the acquired gait. - The fourth column indicates until when he will be able to < strong>to wear the shoes your little one, when it is time to buy a size larger.
You should change the shoes when there is 0.4 cm of space between the end of the foot and the end of the shoe, since the foot expands when walking and needs that space to be able to move correctly with each little step.
👉 What happens if the foot My little one measures, for example, 12.5 cm, which is more than the ideal length of the foot when buying for size M and it still hasn't reached L?
The shoes They will last longer or less depending on the growth of your little one, but since the change is so little away, our recommendation is that you wait for the next size to suit him and take advantage of the entire useful life of the shoe.
Ferocious Table 👶 (baby)
Size FEROZ | Inner length (cm) | Ideal length of the foot in the purchase | Time to change size |
---|---|---|---|
S | 12,2 | 11 – 11,4 | 11,8 |
M | 13,2 | 12 – 12,4 | 12,8 |
L | 14,2 | 13 – 13,4 | 13,8 |
XL | 15,2 | 14 – 14,4 | 14,8 |
Feroces Plus+ Board 👶 (extra wide)
Size FEROZ | Inner length (cm) | Ideal length of the foot in the purchase | Time to change size |
---|---|---|---|
S+ | 12,2 | 11 – 11,4 | 11,8 |
M+ | 13,2 | 12 – 12,4 | 12,8 |
L+ | 14,2 | 13 – 13,4 | 13,8 |
XL+ | 15,2 | 14 – 14,4 | 14,8 |
Rockers Table 🧒 (child)
Size FEROZ | Inner length (cm) | Ideal length of the foot in the purchase | Time to change size |
---|---|---|---|
24 | 15,9 | 14,7 – 15,1 | 15,5 |
25 | 16,6 | 15,4 – 15,8 | 16,2 |
26 | 17,3 | 16,1 – 16,5 | 16,9 |
27 | 17,9 | 16,7 - 17,1 | 17,5 |
28 | 18,6 | 17,4 – 17,8 | 18,2 |
29 | 19,3 | 18,1 – 18,5 | 18,9 |
30 | 19,9 | 18,7 – 19,1 | 19,5 |
31 | 20,6 | 19,4 – 19,8 | 20,2 |
32 | 21,3 | 20,1 – 20,5 | 20,9 |
33 | 22,1 | 20,9 – 21,3 | 21,7 |
Table Sandals Adult 🧔👩
FIERCE size | Inner length (cm) | Ideal foot length at purchase | Inner width (cm) |
---|---|---|---|
34 | 22,5 | 21,2 – 21,8 | 8,8 |
35 | 23,1 | 21,8-22,4 | 10,3 |
36 | 23,8 | 22,5-23,1 | 10,4 |
37 | 24,5 | 23,2-23,8 | 10,5 |
38 | 25,2 | 23,9-24,5 | 10,6 |
39 | 25,9 | 24,6-25,2 | 10,8 |
40 | 26,5 | 25,2-25,8 | 10,9 |
41 | 27,2 | 25,9-26,5 | 11,1 |
42 | 27,9 | 26,6-27,2 | 11,2 |
Adult Shoes Table 🧔👩
FIERCE size | Inner length (cm) | Ideal foot length at purchase | Inner width (cm) |
---|---|---|---|
34 | 22,5 | 21,2-21,8 | 8,8 |
35 | 23,2 | 21,9-22,5 | 9 |
36 | 23.8 | 22,6-23,1 | 9.1 |
37 | 24.5 | 23,2-23,8 | 9,3 |
38 | 25,2 | 23,9-24,5 | 9,4 |
39 | 25,9 | 24,6-25,2 | ,9,6 |
40 | 26,5 | 25,3-25,8 | 9,9 |
41 | 27,2 | 25,9-26,5 | 10 |
42 | 27,9 | 26,6-27,2 | 10,2 |
43 | 28,5 | 27,3-27.9 | 10,3 |
44 | 29,2 | 28-28,6 | 10,.4 |
45 | 29,9 | 28,6-29,2 | 10,6 |
46 | 30,5 | 29,2-29.8 | 10,7 |
Width and instep
And what about the width and instep of my baby?
It is important to check if the width of your little one's foot is adequate for the width of the shoes.
As we have told you, the ideal is to use our FEROZ shoe size template to see if the width of your little one's foot fits our shoes.
If you decide to measure your little one's foot, when you measure the length, take advantage and also mark the width.
Keep in mind that our measurement table is made as you can see in the following image.

To obtain the measurement of the instep you should take a measuring tape and measure it in the area that you can see in the image. If you don't have tape, you can use any thread/cord and then transfer it to a ruler or meter.
This measurement can give you a general idea of whether your little one has a normal, thin or chubby instep... in relation to our shoes.
Each ferocious model has adjustable opening and fastening characteristics. There are models that give more instep and others less, it will depend on the mobility of the upper (part of the instep of the shoe).
The following table shows the measurements of the instep of the lasts (plastic piece that simulates the foot) of our shoes. These are not maximum values but a “perfect” size.
Feroz Size Instep and Width Chart
Size Feroz | Inner width | Perimeter instep Feroz last |
---|---|---|
S | 5,7 | 14 |
M | 5,9 | 14,8 |
L | 6,1 | 15,5 |
XL | 6,3 | 16,1 |
S+ | 5,9 | 14,8 |
M+ | 6,1 | 15,5 |
L+ | 6,3 | 16,1 |
XL+ | 6,5 | 16,8 |
Width chart and instep size Rocker
Size Feroz | Inner width | Perimeter instep Feroz last |
---|---|---|
24 | 6,6 | 17,1 |
25 | 6,7 | 17,5 |
26 | 6,9 | 17,9 |
27 | 7 | 18,3 |
28 | 7,2 | 18,7 |
29 | 7,3 | 19,1 |
30 | 7,5 | 19,5 |
31 | 7,6 | 19,9 |
32 | 8 | 20,3 |
33 | 8,2 | 20,7 |
⚠️ Believe it or not, the world of shoe sizes is a mystery. Each brand of footwear has sizes that can differ greatly, so we consider that it is not a good practice to guide ourselves by the size of another brand of footwear.