Please refer to the size guide listed directly with the item. You can find it under "Special features."
| Length | Width | EU | UK | US |
|---|---|---|---|---|
| 36 | 3.5 | 6.0 | ||
| 37 | 4.5 | 7.0 | ||
| 38 | 5.0 | 7.5 | ||
| 39 | 6.0 | 8.5 | ||
| 40 | 6.5 | 9.0 | ||
| 41 | 7.5 | 10.0 | ||
| 42 | 8.0 | 10.5 | ||
| 43 | 9.0 | 11.5 |
The measurements provided are for reference only and may vary slightly.
You can find instructions on how to measure your feet correctly here.
If you are wearing barefoot shoes for the first time, please note:
They may feel unusually roomy at first, especially in the toe area. This is completely normal and ensures greater freedom of movement and comfort.
- Lightweight barefoot ballerina shoes with a flexible design
- Soft leather with elastic edging for a perfect fit
- TrueSense® GB2 Ballerina Sole for a natural walking experience
Special features
Description
The Groundies Ballerina Ruby is lightness you can slip into. With its flexible TrueSense® GB2 ballerina sole and elastic edging, it adapts effortlessly and gives you a natural barefoot feeling. Soft leather ensures a comfortable feel, while the microfiber heel pad provides gentle support. Perfect for warm days, whether relaxed or elegant, Ruby makes every step effortless. Designed in Germany and handmade in Portugal.
Shipping and returns
Shipping
Our current delivery time is approximately 4–7 business days.
Returns
Returns can be conveniently registered via our Returns portal.
Manufacturer information
EAN/GTIN:
4251723797036
Model number:
GND-110271-0336
Manufacturer
Name:
Groundies GmbH
Address:
Groundies GmbH, Heinrich-von-Stephan-Straße 17, 79100 Freiburg im Breisgau, Germany
Contact:
support.groundies.com/hc/de/
14 days. Zero risk.
Try now.
Wear them. Walk in them. Really use them. If they’re not for you, send them back.
How does the 14-day test guarantee work?
The trial period begins as soon as you receive your Groundies. You can return them to us within 14 days by citing the trial guarantee.
Can I wear these shoes outside too?
Yes, you can also give the shoes a good test run outside.
What condition must the shoes be in for me to return them?
It doesn't matter what condition the shoes are in when you're done. We want you to be able to really put them through their paces.
How does the return process work?
You can easily return items through our Returns Portal Sign up. Simply select the "14-day trial guarantee" option.
Once you've successfully registered, you'll receive your return label.
Terms and Conditions
Starting April 17, 2026, you can try out our shoes in your daily life for 14 days after receiving them. If you’re not satisfied within that time, you can return them to us, citing the 14-day trial guarantee as the reason.
We accept returns under our 14-day trial guarantee even if the product has been used normally, both indoors and outdoors. The decisive factor is the receipt of the return or proof of shipment within 14 days of receiving the merchandise. After the 14-day period has expired, returns under the trial guarantee are no longer accepted. Statutory rights of withdrawal remain unaffected by this policy. This promotion is valid until further notice.
What size do I need?
The best way is to measure your feet before placing your order. Here’s how:
1. Stand barefoot on a sheet of paper.
2. Draw a line to mark where your longest toe ends.
3. Measure the length from your heel to your longest toe.
4. Compare your foot length to the size chart—you’ll find it right on the product page next to the size selector.
Important: Each Groundies model has its own size chart. Please always refer to the information provided for the specific shoe.
Our tip: If you're unsure between two sizes, we recommend choosing the larger one. Barefoot shoes should fit a bit loosely. A gap of about 1 cm in front of your toes is ideal—this gives you enough room as you roll your foot and prevents pressure on your toes.
You can also find detailed step-by-step instructions here:
What are the unique features and benefits of Groundies?
All of our soles are flat, flexible, and Zero Drop—meaning they have no heel-to-toe drop. They provide an authentic barefoot feel and differ primarily in design, tread pattern, and material thickness. This allows you to choose between particularly minimalist soles for maximum ground feel or options with more grip and stability.
Whether you're strolling through town, walking along a forest trail, working in the office, or doing yoga—every activity places different demands on your shoes. That's why we offer a variety of TrueSense® soles designed to optimally support that barefoot feeling depending on the activity. This way, you'll always find the perfect foundation for a natural barefoot experience while walking.
How do Groundies feel when worn in everyday life?
Groundies barefoot shoes mimic the natural feeling of walking barefoot and protect your feet from sharp objects and the cold. Thanks to a combination of high-quality materials and our sensitive TrueSense® sole, Groundies barefoot shoes offer you a walking experience that feels especially natural and is built to last.
What are the differences between the soles?
Our Groundies soles vary in flexibility, tread depth, and fit: from particularly thin and flexible soles that provide maximum ground feel to slightly thicker soles that offer more protection for everyday use or outdoor activities.
Depending on the model, the width of the toe box also varies between Barefoot Fit, Barefoot+, and Barefoot Light.
No matter what you choose, our TrueSense® technology ensures you always feel natural and comfortable.
Barefoot Light
Our regular toe box design – ideal for narrower feet or for those new to the world of barefoot shoes.
Barefoot
This cut follows the natural anatomy of your feet and offers unrestricted freedom of movement.
Barefoot+
Our widest cut offers extra space and comfort—ideal for wide feet and barefoot enthusiasts.
