‘The Collector’ — composed, methodical, quietly attuned. Tailored felt and polished leather sit with weight: observant, archival. Garments worn like thought — measured, categorized, and memorized. Not worn for display, but for meaning. A memory system.

- Upper: Shiny Natural Leather
- Footbed: Anatomically shaped BIRKENSTOCK cork-latex footbed, with standard velours lining
- Sole: Exclusive stitch down outsole, blending the classic BIRKENSTOCK bone pattern
- Branding: Co-branded rivet with Song for the Mute and BIRKENSTOCK
- Packaging: Co-branded shoe box including exclusive collaboration dustbag


MATERIALS

Upper material: Natural leather
The natural leather that we use is mostly smooth leather, in some cases tumbled leather. This type of leather has many special characteristics, such as breathability, adaptation to the shape of the foot and durability.

Insole: Natural leather
Natural leather can be recognized by its untreated surface. BIRKENSTOCK purposely does not treat surface grains and other characteristic features. BIRKENSTOCK uses sturdy leather with a thickness of 2.8 to 3.2 millimeters as upper material.

Footbed material: Cork
Cork is a sustainable material extracted from the bark layer of the cork oak. This natural product is insulating and offers very good cushioning.

Outsole: EVA
EVA (ethylene vinyl acetate) is a high-quality, very light, elastic material with extremely good cushioning. As a result, it smooths out slight irregularities in the floor and ensures that every step is softly cushioned.