Sizes for inline skates will vary from one manufacturer to another, however there are some general rules that you can follow for finding the right fit.

Usually inline skates will fit half a size smaller than regular street shoes. Most inline skates on the market come equipped with ventilation holes so it’s important to wear good quality socks that can breathe.

When buying inline skates, the player should wear the same kind of socks that they will be wearing when playing. There should be no wrinkles when the skate is being laced up to ensure the most comfort.

To correctly fit inline skates, first loosen the skate so the foot slips effortlessly into the boot.
The foot should then be moved all the way to the front of the boot so that the toes are pressing against the end
of the skate.
With the foot all the way into place inside of the skate, you should be able to slip one finger into the back
between the boot and the heel.

For correct wearing, the tongue of the skate needs to be placed behind the shin pad.
This will adequately protect the lower part of the leg.
At no time should the laces of the skate be wound or strapped around the boot of the skate.
This can restrict blood flow to the foot and can cause irritation to the Achilles tendon.
Before lacing up the boot, bang the back of the skate onto the floor so the heel of the foot is butted up against the heel of the boot. This will ensure the foot is in the correct position for lacing. The boot is laced up this way:

1. The first three eyelets are snugly laced.

2. The next three to four eyelets are loosely laced. This is so there is no constriction.

3. The last few eyelets are snugly laced in order to maximize the amount of energy that is transferred to the skate.

Once the inline skates have been laced up, there needs to be about 1½ to 2 inches between each of the eyelets.
If the space between eyelets is greater than 2 inches it’s a good indication that a narrower skate should be tried.
The player should walk around in the skates for about 10 to 20 minutes to make sure the fit is comfortable.
After walking around in the skates the player should take them off and check each foot for chaffing and red marks, which will be an indication that there is too much pressure being applied and the skate isn’t the best fit.
Try a size smaller as well as size larger since skates that are either too large or too small can cause chaffing and redness.

Whenever new inline skates are purchased it’s important the player takes the time to break them in correctly. The skates should be worn for short periods to break them in before they are worn for an entire practice or game.
This will prevent chaffing and blisters from developing.

After every use, the skates need to air dry, the liners of the skates should also be removed to allow them to dry too.
Proper drying will help control odor and extend the life of the skate.
If cracks develop in the boots they should be immediately replaced, as the skate is no longer safe to wear.