Hartley & Grey
Kaia Great Sole Sneakers
Kaia Great Sole Sneakers
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✓ Free UK delivery ✓ 60-day returns ✓ Free size swaps
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Step Into Style + Support
The Kaia™ Sneakers are designed with an orthopaedic platform that cares for your posture while keeping you effortlessly stylish. Built with sturdy construction for durability and a sleek, modern look, these sneakers are made to move with you—day after day.
Why You’ll Love Kaia™
✔ Superior Comfort – Cushioned design hugs your feet and relieves pressure with every step.
✔ All-Day Support – Promotes balance, reduces fatigue, and keeps you on the go.
✔ Durable Construction – Made with high-quality materials for long-lasting wear.
✔ Stylish & Versatile – A sleek design that pairs perfectly with any casual wardrobe.
Size Chart
Delivery & Returns
Delivery & Returns
Free UK delivery on every order — dispatched within 1–2 working days, fully tracked. You have 60 days to return your pair for a full refund, and wrong-size swaps are always free.
Size & Fit
Size & Fit
Standard UK sizing. Between sizes? Choose the larger size for a relaxed orthopaedic fit. Use the Size guide link above the basket button for foot-length measurements — and remember, size swaps are free.
Our 60-Day Promise
Our 60-Day Promise
Wear them, walk in them, live in them. If your Hartley & Grey pair doesn't win you over within 60 days, we'll refund you in full — no quibbles.
Size Guide
All our footwear uses standard UK sizing. If you're between sizes, or you prefer a relaxed orthopaedic fit, we recommend choosing the larger size.
Women's shoe size conversion
| UK | EU | US | Foot length (cm) |
|---|---|---|---|
| 3 | 36 | 5 | 22.5 |
| 4 | 37 | 6 | 23.5 |
| 5 | 38 | 7 | 24.1 |
| 6 | 39 | 8 | 25.1 |
| 7 | 40 | 9 | 25.9 |
| 8 | 41 | 10 | 26.7 |
| 9 | 42 | 11 | 27.6 |
How to measure your feet
- Stand on a sheet of paper at the end of the day (feet swell slightly by evening).
- Mark the tip of your longest toe and the back of your heel, then measure the distance in centimetres.
- Measure both feet and use the larger measurement.
Still unsure? Remember: wrong-size swaps are free — order your best guess and we'll sort the rest.
