TrueS Connect-01
A new era of sneakers: Anatomy as the foundation. Innovation as the standard.
154.00 £
/
Tax included,
plus shipping costs
14-day test guarantee
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.
Description
TrueS Connect-01 redefines the premium sneaker: with human anatomy as a design principle, innovative technologies, and a progressive, asymmetrical silhouette.
The newly developed anatomical last gives the big toe room for its natural function in balance and movement and ensures secure support with its optimized heel shape.
High-quality premium suede leather meets Solarcore® Aerogel technology, which reduces heat loss in the cold with minimal use of material.
The removable D3O® Transition & Protection Footbed provides additional comfort and protection when needed.
The flexible TrueSense® TS-CT sole with Zero Drop enables a natural foot position and immediate ground feel – for enhanced sensory perception, balance, and coordination with every step.
In detail
Fit
Barefoot Fit: With an anatomically shaped toe box. Ideal for narrow to medium-width feet.
Occasion
Design
Special Features
Innovative Solarcore® insulation, removable D3O® Transition & Protection Footbed & flexible TrueSense® TS-CT sole
Upper
Inner Lining
Insole
Solarcore® Aerogel-Isolierung
D3O® Technology
Please note that colors may vary slightly depending on your screen, and the actual product may differ slightly.
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 & Returns
Shipping
The current delivery time is 3–5 business days within Germany and to Austria, and 4–8 business days to Switzerland.
Returns
Returns can be registered conveniently through 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.
14-day test guarantee
14 Days. Zero Risk. Test them now.
Wear them. Use them. Go out in them. Test our shoes with the unique TrueSense® technology for 14 days in everyday life. Completely risk-free.
How does the 14-day test guarantee work?
The test period starts as soon as you receive your Groundies. You can return them within 14 days, stating the test guarantee as the reason.
Can I wear the shoes outdoors too?
Yes, you can test the shoes properly outdoors too.
What condition do the shoes need to be in for me to return them?
It doesn't matter what condition the shoes are in at the end. We want you to really test them properly.
How does the return process work?
You can conveniently register your return via our returns portal. Simply select the option '14-day test guarantee'.
After successful registration, you will receive your return label.
Conditions
Since 17.04.2026, you can test our shoes in everyday life for 14 days from receipt. If you are not satisfied within this period, you can return them, stating the 14-day test guarantee as the reason.
We accept returns under the 14-day test guarantee, including normal use indoors and outdoors. The decisive factor is receipt of the return or proof of dispatch within 14 days of receiving the goods. After the 14-day period, returns under the test guarantee are no longer possible. Statutory withdrawal rights remain unaffected. This offer is valid until revoked.
Manufacturer information
EAN/GTIN:
4255660542773
Model number:
GND-520377-0536
Manufacturer
Name:
Groundies GmbH
Address:
Groundies GmbH, Heinrich-von-Stephan-Straße 17, 79100 Freiburg im Breisgau, Germany
Contact:
support.groundies.com/hc/de/
Innovation at every layer.
Behind the TrueS Connect-01 is an interplay of newly developed technologies, high-quality premium materials and precise construction, in which every element contributes to a completely new movement experience.
Flexible
Premium
Balanced
|
Traditional shoes
Traditional shoes |
TrueS Connect-01
TrueS Connect-01 |
|
|---|---|---|
| Anatomy | Conventional shape Conventional shape | Newly developed anatomical last Newly developed anatomical last |
| Technology | Cushioning & restriction Cushioning & restriction | TrueSense®, D3O® & Solarcore® TrueSense®, D3O® & Solarcore® |
| Materials | Standardized material selection Standardized material selection | Innovative premium materials Innovative premium materials |
| Movement | Predefined walking sensation Predefined walking sensation | Individually adjustable experience Individually adjustable experience |
The Future of Insulation.
With Solarcore®, we are bringing a technology from space travel into a new generation of footwear.
Feel the difference.
No promise replaces your own feeling. Discover TrueS Connect-01 and see for yourself – with the Groundies Test Guarantee.
Frequent questions
What's different about the TrueS Connect-01 compared to other Groundies shoes?
What is TrueSense® technology?
What is D3O®?
What is Solarcore®?
Is the TrueS Connect-01 also suitable for barefoot shoe beginners?
Can I customize the experience of the TrueS Connect-01?
How do I find the right size?
Can I test the TrueS Connect-01?
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.
