Size Chart
Here's how to measure your feet.
Follow these simple steps to find your size:
01 Preparation
Place a sheet of paper flush against a wall. Stand on it barefoot, with your heel touching the wall.
02 Measure the length.
Mark the tip of your longest toe and the end of your heel. The distance between the marks is the length of your foot.
03 Measure the width.
Mark the widest part of your forefoot at the level of the balls of your feet. The distance between the marks is your foot width.
04 Find size
Use your values for the size table on the respective product page. Each size table is individually tailored to the model.
Note: So that your feet have enough freedom of movement, the rolling room (about 5 - 12 mm) has already been included in our size table. So you can orient yourself directly to your measured foot length.
Special features
Description
A sporty, minimalist sneaker for everyday urban life. The Universe sneaker combines a modern, sporty design with a strikingly clean upper and our TrueSense® technology. Lightweight, flexible, and comfortable all day long. Versatile and easy to pair—for everyday wear, city life, and natural movement.
Size & Fit
Size Chart
The 3 fits
All three fits strengthen your core and help you feel the ground. There's no right or wrong—just your personal fit.
Barefoot Light Fit: Ideal for very narrow feet.
Barefoot Fit: With an anatomically shaped toe box. Ideal for narrow to medium-width feet.
Barefoot+ Fit: With an anatomical toe box. Ideal for wide feet.
The sizes in which your desired item is available vary depending on the style and color.
Shipping and returns
Shipping
Our current delivery time is approximately 4–7 business days.
Returns
Returns can be conveniently registered via our Returns portal.
The 5 TrueSense® Principles
Toe Freedom
Your toes have room to move freely. This gives you more stability and a secure feeling with every step.
Zero Drop
Heel and forefoot are on the same level. Your body aligns more naturally.
Flexible Sole
The sole follows your natural movement. Your muscles stay active and are strengthened in everyday life.
Design & Quality
Together with our partners, we create shoes from high-quality materials and precise craftsmanship that support the natural movement of your feet.
Minimal Sole Thickness
You feel the ground again. Direct feedback makes your movement more precise and conscious.
Manufacturer information
EAN/GTIN:
4251723798552
Model number:
GND-110055-5036
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.
