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- Y-3 Men's Ultraboost 21 Trainers - Lighbrown/Core White/Bolorange

Y-3’s Ultraboost 21 trainers are sleek running-style shoes with a sock-like construction. The uppers are crafted from a single piece of smooth white textile with a hint of black leather at the heel. The pair rest upon a directional rubber sole with a chunky boost™ midsole.
Upper: Textile. Lining: Fabric. Sole: Rubber.
Upper: Textile. Lining: Fabric. Sole: Rubber.