Reformation Jeans Size 31 Button Fly Black Wash Discover classic style from Reformation. Crafted with a black button fly and high-rise waist, these authentic jeans are sure to make a statement in your wardrobe. Featuring iconic detailing, they’re cut for a flattering fit yet structured enough to stand the test of time. Get ready to dazzle in these attractive jeans. In Great Pre-Loved Condition - reformation jeans - black - button fly - high rise - size 31.