JJJJound is back on the PUMA Mostro, this time keeping the color palette about as simple as possible. The “Black/White” edition pairs a dark suede upper with a single off-white Formstrip running along each side.

Most of the shoe stays black, including the leather tongue, elastic straps, and sharply textured rubber sole. Instead of standard laces, two wide bands cross the foot and hook through small metal loops, preserving one of the Mostro’s most recognizable details. Off-white leather around the collar adds another light break without changing the overall look.

Branding is limited. JJJJound appears on the insoles, while a faint debossed mark sits across the suede heel tabs. Nothing else competes with the Mostro’s low shape or the outsole, which wraps upward around the toe, sides, and heel with rows of raised rubber spikes.

The JJJJound x PUMA Mostro “Black/White” will release in person at Porter Tokyo on August 1, 2026. A raffle for customers in Japan is open ahead of the launch.

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