BioWorld
DELFOS Barefoot Sandals
DELFOS Barefoot Sandals
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DELFOS – Ultra-Flexible Barefoot Shoes with Vibram Sole
Experience the freedom of natural movement with DELFOS, our lightweight and breathable barefoot shoes made in Spain. Designed to mimic walking barefoot, DELFOS features a 4mm Vibram Supernew Flex sole for exceptional grip, flexibility, and durability – perfect for everyday adventures.
Crafted with a wide toe box for natural toe spread, zero-drop design for better posture, and minimal cushioning to help strengthen your feet, DELFOS supports a healthier, more grounded way of walking. The breathable materials keep your feet cool and comfortable, while the flexible construction allows you to move naturally with every step.
Ideal for anyone seeking comfort, freedom, and a deeper connection with the ground – DELFOS is barefoot walking at its best.
Materials:
Upper – Plant-based microfiber from the Giardini Eco
Insole – Microfiber suede from the On Micro
Sole – Vibram’s Supernew Flex 4 mm
▶ Delivery Terms
We provide Free delivery via Royal Mail Second Class, according to Royal Mail's regulations, is made within 2 to 4 business days. The specified delivery period begins after order confirmation. Please note that delivery does not occur on Sundays and public holidays. Once your order is dispatched, a tracking number will be sent to your email for package tracking.
▶ Return Policy
We offer a free return service throughout the UK within 30 days of delivery.
- Log in to your account on our store’s website.
- Submit a return request for the item you'd like to return.
- Once we receive your request, we will send you a prepaid return label. Label is valid for 7 days.
- Use this label to return your shoes free of charge.








Bioworld sizes chart

UK size | EU size | Length (cm) | Width (cm) |
3.5 | 36 | 23,7 | 9,1 |
4.5 | 37 | 24,5 | 9.4 |
5.5 | 38 | 25,2 | 9,7 |
6 | 39 | 25,7 | 9,9 |
7 | 40 | 26,3 | 10,1 |
8 | 41 | 26,9 | 10,3 |
8.5 | 42 | 27,4 | 10,5 |