Collection: Two-strap sandals

There are shoes that, all by themselves, symbolize the arrival of warmer weather. At Zèta, we've taken the iconic mule design and transformed it into a durable and distinctive piece. Our two-strap sandals are designed for those looking for an easy-to-slip-on shoe. It's the pair you won't take off until September!

A unisex and universal design

The strength of the two-strap mule is that it's unisex. Its clean lines and balanced shape adapt to all body types. We've designed this open-toe mule to be the common denominator of your summer wardrobe.

Custom comfort: adjustable straps

We know that every foot is unique. That's why our two-strap sandals are fully adjustable. Thanks to their metal buckles, you can adjust the tightness to the nearest millimeter. Whether you have narrow or wider feet, the shoe adapts to you, not the other way around. The wide straps hug the foot without ever compressing it.

The sole is not to be outdone. Its internal shape follows the arch of the foot to provide natural support throughout the day. This allows you to spend hours walking without feeling tired. Each model is also tested at CTCP in Portugal to guarantee its flexibility and durability.

Vegan mules made from olive

True to our commitments, these mules are 100% vegan. We use an innovative material created from olive waste. It's flexible, very strong, and offers a feel close to leather, without any animal origin. Handmade in Portugal in our family workshops, these vegan mules are born from artisanal know-how that prioritizes quality over quantity.

How to wear your strap sandals in 2026?

This season, as with boat moccasins, the key is "functional chic".

Pair them with wide linen trousers or thick canvas shorts. It's this versatility that makes the mule the centerpiece of summer 2026.

Your questions about our two-strap mules

Are your sandals really unisex?

Yes, absolutely. We have worked on the proportions so that our double-strap mules are suitable for both men and women. The design is neutral and the size grid is designed for everyone. One model, an infinite number of ways to wear it.

Can the two straps be adjusted separately?

That's the whole point of the model. Each strap has its own adjustment buckle. So you can loosen the top strap if you have a high instep, while keeping the bottom one tighter to hold the front of the foot securely.

Do the straps hold the foot well?

Yes, that's the whole point of double-strap mules. The two straps are wide and adjustable thanks to the buckles. You can adjust the tightness according to the morphology of your foot for a custom fit, without the foot ever sliding forward.

How do I care for my vegan mules?

A damp sponge is enough to remove dust. Our plant-based materials are designed for everyday resistance and do not require any specific cleaning products. For hairy models, a simple soft cloth will restore their shine.

Why choose mules rather than sandals with fastenings?

For absolute freedom. The open mule is the ultimate casual shoe. You slip it on in a second and never take it off.