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crossover beauty back widens the bottom circumference, slender waist increases support strength, supports and protects the chest, x cross design blooms butterfly girl back, u-shape, smooth and comfortable and natural lines temperament: the u-neck decorates the shoulder and neck lines, highlighting the sultry collarbone, highlighting the elegant temperament widen the hem and gently wrap the bust.the cross-back is cut with a sleek curve to reveal a flattering butterfly bone.selected high-quality double-sided brocade, moisture absorbent, breathable, soft and comfortable.syi