An incorrectly fitting helmet offers no protection.

In American English, “vice” refers to a bad habit.

An improperly fitted or poorly sealed windshield will cause endless problems.

A badly adjusted bracelet can result in a reduction in autonomy.

Did God Will the evil that crowned Him with thorns?

Did you know that a backpack that is badly adjusted, improperly used or ...

So I was filling a niche that had not been adequately covered.

You could have: an ill-fitting copper (non-hormonal) IUD.

The jacket is not totally closed, the kepi badly adjusted.

Poorly fitting safety equipment, including sports helmets

An improperly fitted helmet is the same as not wearing a bike helmet at all!

An unbuckled helmet is like not wearing a helmet at all.

An improper fitting mask will also fog up, dramatically limiting visibility.

I won’t lay anything heavy or ill–fitting on you.

I won’t lay anything heavy or ill–fitting on you.