At Running Bath, we know how important it is to get the size of your shoes and clothing just right. A great fit means better comfort, better performance and fewer distractions on your run. Below you’ll find everything you need to measure and choose sizes with confidence.
Use the links below to read our size guides
Footwear Sizing Guide
- Measure your foot length
Place your foot on a piece of paper against a wall. Mark the tip of your longest toe and the back of your heel.
Measure the distance between these two points in centimetres or inches. Repeat for both feet, go with the larger measurement. - Check brand size charts
Each brand can fit a little differently, check the sizing chart for each brand we stock. - Consider width & volume
If you have a high instep, wide forefoot or narrow heel you may need a different width or volume. - Try them on
Make sure there’s no pinching and your toes have room to move
Clothing & Accessories Sizing
- Use a measuring tape to measure your chest, waist, hips and inseam.
- Compare your measurements to the size chart for the item you’re purchasing.
- Running kit should fit snugly but allow full movement and breathability.
- For technical layers (wind jackets, thermal tops), it’s fine to size according to your usual size unless you prefer a very loose or very tight fit.
Why Fit Matters for Running
Wearing the wrong size can affect your running experience:
- Shoes that are too tight may cause blisters or discomfort.
- Shoes that are too big may allow your foot to slide around and affect your stability.
- Clothing that doesn’t fit properly can lead to chafing, overheating or restricted movement.
Making sure your fit is right from the start means you can focus on one thing: enjoying your run.
Book Your Free Gait Analysis
To complement our sizing guides and to ensure your footwear choice is truly right for you, we offer a Gait Analysis service in store. Our expert team will assess how you run and walk and recommend shoes that suit your stride.
Book here: Book a Gait Assessment
Still Unsure? Visit us at our Bath store, give us a call or drop us an email. We’re here to help you find the right fit for your running style and goals. Happy running!