Guides

Fit guides.

Short references covering measurement, UK sizing, common fit problems, and how photos and privacy work.

How to measure

The six measurements The Cupsar uses, how to take them, and why they point you toward relevant reviews rather than a perfect answer.

UK sizing basics: why cup letters depend on the band, what sister sizes are, and how usual size and worn size differ.

What the shape options mean and why shape changes how the same size fits — useful for comparing reviews from similar shapes.

Loose bands, floating gores, wires that sit wrong, strap gap, cups cutting in — what each can indicate and how to narrow it down.

How photos work here: optional, moderated, login-required, and anonymous. What to include, what to leave out, and who can see them.