Navy 'The Collector' Classic T-ShirtThis Song For The Mute collaboration with Birkenstock works to refine basic styles rooted in vintage athleticwear. The relaxed cut gives this tee a familiar, lived in feel, while the graphic phrase Collector adds a subtle point of interest and nods to the two brands expressions of identity in this collection. Crew Neck Graphic Detail 100% Cotton Birkenstock Collaboration Designer Colour: Overdyed Navy