Rip Curl Cala Nights Baby Tank Top. The Cala Nights Baby Tank is the ultimate throwback essential. Designed in a ribbed stretch cotton fabric, this fitted baby tank hugs in all the right places while keeping things soft and breathable. Subtle embroidery adds a touch of laid-back charm, making it a perfect match for high-waisted shorts or a flowy skirt. Whether you're hitting the boardwalk or lounging in the sand, this tank is made for sun-drenched days. 95% Cotton 5% Elastane. Machine wash. Imported.