Birko-Flor, EVA and BirkiBuc, a Birken-story

At TOWER, there are a number of questions we’re asked regularly — "How do I join the TOWER Family?", "When is your next event?" and the inspiration for today’s post: "What is the difference between Birkenstock's EVA, Birko-Flor and BirkiBuc uppers? I like my natural leather and suede!" Read on for a closer look at what sets Birkenstock's range of leather alternatives apart.

A quick guide to Birkenstock’s non-leather uppers

Many customers choose leather alternatives for ease of care, vegan preferences or simply for the specific look and performance these materials offer. Below we break down the differences so you can pick the finish that best suits your lifestyle and aesthetic.

Birko-Flor - here to stay:

In all of its comfortable glory, Birko‑Flor is a skin‑friendly, tear‑resistant synthetic that takes significantly less effort to look after than everyday leather. Each sheet is made from a soft acrylic and polyamide felt fibre compound, finished with a leather‑like sheen. The perks? No break‑in period and a reliable level of water resistance. Its low maintenance and durable finish make it ideal for everyday sandals and slides that need to perform as well as they look.

BirkiBuc - a softer approach:

As the name suggests, BirkiBuc offers a synthetic take on nubuck. While it shares some DNA with Birko‑Flor, the textile finish is very different — BirkiBuc mimics the slightly napped appearance of nubuck rather than smooth leather. Think of it as a softer, textured alternative that still reads premium on the foot. It’s also low‑maintenance and wears in attractively, making it a great choice for those who want the nubuck look without the care requirements.

EVA - the poolside success:

Now for one of Birkenstock's most frequently used — though often overlooked — materials: ethylene‑vinyl acetate, or EVA. If your cosy cork footbed soaks up water, EVA is the answer: it’s a lightweight, rubber‑like plastic that retains cushioning without absorbing moisture. The result is a hygienic, odourless and virtually indestructible option, ideal for poolside and beachwear and very easy to clean.

Choosing between Birko‑Flor, BirkiBuc and EVA often comes down to how you live in your shoes: Birko‑Flor for everyday polish and low fuss, BirkiBuc for textured softness with minimal care, and EVA for wet environments or ultra-light practicality. If sustainability or long-term wear is a priority, consider how each material interacts with the footbed and finish you prefer — our team can talk you through the finer points in person.

Yet to decide on your pair? No worries. Join us on the TOWER IG for styling advice, or head over to tower-london.com to shop the entire range. If you’re local, pop into a TOWER store to try styles on—there’s nothing like seeing and feeling a material on the foot to make the choice easy.

Shop Birkenstock at TOWER

Birkenstock Arizona Birko-Flor Womens Black Regular Sandals View product

Birkenstock Arizona Birko-Flor Womens Brown Regular Sandals View product

Birkenstock Arizona Birko Flor Nubuck Stone Regular Sandals View product

Birkenstock Arizona EVA Womens Black Sandals View product

Shop all Birkenstock at TOWER London