Classic Slipper AS20 Unisex Size:39 It's just as comfortable with

It's just as comfortable with chunky socks or bare feet

it has the anatomically shaped cork/latex footbed that conforms to the shape of your feet

The memory foam footbed provides  amazing support and comfort for all day wear

featuring a back strap

The classic BIRKENSTOCK Zermatt gets a premium update with a soft suede upper

Classic Slipper AS20 Unisex Size:39 It's just as comfortable withHaflinger's classic AS slipper is 100% pure wool, keeping feet cool in hot weather by wicking away moisture, and cozy warm when it's cold. The outsole features non marking rubber dots providing grip on slippery indoor surfaces. (Available in men's and women's sizing)