Rip Curl Cala Nights Crop Top. Say hello to laid-back beach days with the Cala Nights Knit Crop. Crafted from a soft cotton-poly yarn blend, this crop top brings the perfect mix of comfort and style. The crossback straps and yarn-dyed stripe make it the ideal match for your favorite high-waisted shorts or skirts. A softener wash gives it that ultra-soft, lived-in feel, making it the perfect top for all-day adventures by the surf. 67% Cotton 33% Polyamide. Imported.