Some sandals ask for a lot of thought. The Madrid Big Buckle asks for almost none. It's a single-strap slide you can step into on your way out the door, and its clean shape works with nearly everything you already own. If you want one pair of sandals that handles errands, patio dinners and weekend trips without a second thought, this is a natural place to start.

The Madrid is one of BIRKENSTOCK's minimalist classics, and the Big Buckle version gives that pared-back silhouette a bolder accent. A wide leather strap crosses the top of the foot and fastens with an oversized metal pin buckle. That buckle isn't only decorative: it lets you adjust the strap to your foot, so you can loosen it on a hot afternoon or snug it up when you're covering more ground. Depending on the color you choose, the strap comes in a leather finish such as oiled leather or nubuck. The whole sandal sits on a lightweight, cushioning EVA sole.

Underfoot you'll find the classic BIRKENSTOCK cork-latex footbed. It's anatomically shaped, with a deep heel cup and raised edges that cradle your foot, and over time it molds to your foot so the fit becomes more and more your own. That's what gives the Madrid its familiar, settled-in comfort, whether you're standing in line at the farmers market or walking a few blocks to dinner.

Styling is easy. Wear it with white denim and a striped tee in early summer, or with a linen dress and a straw tote on vacation. Cropped trousers, shorts and flowy skirts all work, and it transitions into late-summer evenings with a light cardigan. The single strap leaves most of the foot open, which keeps outfits feeling relaxed and unfussy.

Wear the Madrid Big Buckle around town, at the lake cabin, along a beach boardwalk or at a backyard barbecue. It's an easy pick for travel, too, since a slide is quick to slip off at security and simple to pack.

A note on fit: because the Madrid is held on by a single strap, getting the buckle setting right makes a real difference. You want the strap snug enough that your foot doesn't slide forward, but loose enough that you can wiggle your toes and your heel sits comfortably in the heel cup. Give the footbed a little time, too. It can feel firm at first and becomes more comfortable as it adapts to the shape of your foot. Many people start with a few hours at a time and build from there.

Care depends on the finish of your pair. Wipe oiled leather with a soft, slightly damp cloth and let it dry naturally away from direct heat, and use a suede brush to refresh nubuck. If the cork edges of the footbed start to look dry, a thin coat of BIRKENSTOCK cork sealer helps protect them.

• Slide design: single wide strap for easy on and off
• Oversized buckle: metal pin buckle adjusts the fit and adds a bold accent
• Upper: leather strap; finish varies by color
• Footbed: classic cork-latex footbed that molds to your foot over time
• Sole: lightweight, cushioning EVA
• Easy to pack: a simple slide for travel and everyday wear

Finding your fit: BIRKENSTOCK uses whole EU sizes, so if you usually wear a half size in US sizing, the next size up is the safer choice. Regular width is the roomier fit, while Narrow offers a slimmer fit through the foot; check the size selector to see which widths are offered for this style. When you try them on, your heel should sit comfortably at the back of the footbed and your toes should have a little room before the front edge, without pressing against it or hanging over. If you plan to wear this style with socks, keep that extra thickness in mind when choosing your size.

Between sizes? Our fit experts suggest ordering the next size up.

Available widths are shown in the size selector. BIRKENSTOCK uses EU sizing. Actual color may look slightly different from the product images.