Which size do I need?

We want your Swelly socks to feel perfect from day one. That’s why we’ve created a simple, stress-free size guide. All you need is a measuring tape, a chair, and (optionally) a helping hand.

1

Sit comfortably with your knees at a 90° angle.

2

Measure the circumference of your calf. This is even easier with a helping hand.

3

Also note your shoe size.

4

Compare your measurements with the table below and choose your perfect size.
Custom-fit comfort in one minute.

No worries about choosing the right calf size! With free exchanges & returns, you can try them on at home and always find your perfect-fitting Swelly socks.

Between two sizes? Choose the larger size or email us at support@swellysocks.com.

Frequently asked questions about sizes, compression, and fit

Does Swelly offer small or large sizes?

Each size comes in one length, but thanks to the flexible stretch, our socks fit both shorter and longer legs. Feel free to check our size chart to find your perfect fit.

Our socks offer mild, graduated compression of 18–25 mmHg. Designed to feel like a warm, gentle hug around your legs. This is currently the only compression level we offer.

Yes! Our socks are designed to fit most calves.

We designed our socks with moderate compression so they are comfortable enough to wear all day. For maximum benefit, we do recommend wearing them for at least 3–5 hours.

You can wear them at any time of the day, especially if you sit or stand for longer periods.

Yes! Athletes experience less fatigue, even on the go. During flights or long car rides, swelling is noticeably reduced.