This is a black t-shirt from Merz B. Schwanen, part of their 215 Loopwheeled collection.
Merz B. Schwanen
COMME des GARÇONS
Berner KüHl
Jil Sander
Auralee
Nanamica
Skall Studio
Wrkshp
Sunspel
Lemaire
Buck Mason
Solefly
Norse Projects
Dehen 1920
Essentials
Jjjjound
Mate The Label