Free challenge
Design Your Ideal Barefoot Sandals
Stop suffering in summer shoes — design barefoot sandals that fit you perfectly.
Join the free 5-day challenge and create your own custom sandal design — even if you’ve never made shoes before.
- No experience needed
- No special tools required
- Just 20–30 minutes per day
20/4/2026 - 24/4/2026
Tired of sandals that just don´t fit?
Most sandals are made for “average feet.” But your feet aren’t average. That’s why they never feel quite right.
Imagine this instead - sandals that:
- Fit your exact foot shape
- Feel natural and comfortable all day
- Actually match your style
And the best part? You design them yourself.
Take your first step towards custom barefoot sandals!
What will we cover in the challenge?
- Day 1: As a medical doctor, I will explain to you the health benefits of wearing barefoot shoes and whether they´re also for you.
- Day 2: I will show you 3 basic sandal designs and their variability, and you will choose the ones you like.
- Day 3: You will know your foot shape better, and you will finally outline your feet properly.
- Day 4: I will reveal to you all the important details of the pattern-making process, and you will make your pattern without guessing.
- Day 5: Live Q&A with Dr Karolina — bring your pattern, ask anything, find out how to turn your pattern into your summer sandals.
All you need is paper, a pen, and your feet.
After the challenge, you will have your pattern ready, and you'll know exactly how to continue — and I'll show you where to get materials.
Imagine wearing sandals as light as a feather.
How will the challenge run?
- 4 days, 20-30 minutes. The challenge will run from April 20th (Monday) til April 23rd (Thursday). For the first 4 days, you will get a short video with the theory and a practical task. You can listen to the video while cooking or walking, and the praxis will take around 10 minutes.
- Final webinar. On Friday, 24/4/2026, we will meet live via webinar with Dr Karolina, where 5 of you will get feedback on your pattern live. I will also show you how you can continue making your leather sandals.
- Website with materials. All the videos and materials from the challenge will be available to you on a special page of our website.
- Private Facebook group. Join our private community — share your progress and get feedback from others who are creating their design and pattern.
Can you make it even as a beginner?
Look what the participants of last year´s challenge achieved.
They created their pattern during the challenge, and they turned it into a pair of barefoot sandals.
You will learn from an expert.
Who will guide you through the challenge?
Dr Karolina Castkova
I am a medical doctor and a mother of four children, and their health is my primary concern. I like to combine modern scientific knowledge with a holistic view of health.
I didn´t decide to sew my first pair of barefoot shoes in 2017 because of my health. The health benefits only became apparent after wearing hand-sewn, custom-made shoes.
Of all the shoes made with just a few hand tools, I like sandals the most. They are easy to make and look professional.
In this challenge, I will reveal all I know about designing your sandals.
Sign up for the free challenge and design your ideal barefoot sandals!
Experience the relief of knowing which sandal design is the right fit for you.
I will share my experience and tips to help you start making your barefoot shoes with the easiest type: sandals.
Registration closes April 19th at midnight!
