Size Guide

At Good Sunday, we design every piece to move with you; relaxed, effortless, and made for real life.

Our fits are intentionally designed to feel easy with a soft structure, generous silhouettes, and fabrics that drape beautifully without losing shape.
If you prefer a cosier, more relaxed feel, choose your usual size.
For a more fitted look, we recommend sizing down.

Every product page includes detailed measurements and model information to help you choose with confidence.

Still unsure? We’re here to help, just email care@goodsunday.co.uk and we’ll happily guide you to your best fit.