Why size is more than a number
A size label can help. Measurements can help. A size table can help. But none of them explain the full decision on their own. When a shopper chooses size online, they are also asking a more personal question: will this product fit me the way I want it to fit? That question depends on product, fit and preference.
Size labels are useful, but limited
S, M, L, 38 or 42 can communicate a starting point. But the same label can feel different across brands, categories, materials and cuts. That is why sizing often becomes a moment of uncertainty, even when the shopper likes the product.
Product context matters
A blazer, a dress, a running shoe and a hoodie can all require different thinking. The right size depends on what the product is designed to do and how it is expected to fit.
Preference matters
Some shoppers want a closer fit. Others prefer more room. The same product can be the right choice in different sizes depending on how the shopper wants it to feel.
What this means for online stores
Stores need size guidance that supports the decision in context. Personal sizing brings more relevance into the product-page moment, helping shoppers choose with more confidence.