Crumbling
Definition
When a sneaker's midsole or outsole deteriorates and literally falls apart due to age. Crumbling is caused by polyurethane degradation and is common in unworn vintage sneakers.
In Context
“My OG Air Mags started crumbling in the box — that is the risk with keeping vintage pairs too long without wearing them.”
Category
First Letter
More Condition Terms
New In Box (NIB)
A sneaker that is brand new and comes with its original box. NIB means the shoes have never been worn and the box is included in the sale.
New Without Box (NWB)
A sneaker that has never been worn but does not come with the original box. NWB pairs are typically priced slightly lower than boxed equivalents.
Brand New (BN)
A sneaker that has never been worn and is in original retail condition. Brand New is interchangeable with Deadstock in most contexts.
Like New (LN)
A sneaker that has been tried on or worn once indoors with virtually no signs of wear. Like New shoes show no sole wear, creasing, or marks.
Excellent
A used sneaker in outstanding condition with only the faintest signs of wear. Excellent condition shoes may show very slight creasing but minimal sole wear.
Very Good
A sneaker with light but noticeable wear. Slight creasing, minor sole marks, but overall clean and well-maintained. A solid condition for regular wearers.