Size: Small Color: Pistachio (This listing is for pistachio, but I have two other colors available in my closet) A stylish, ribbed, racer back tank Semi-fitted with dropped armholes Sythetic fabric stays breathable and cool 65% polyester, 35% rayon Bring the heat in the Women's ALO YOGA Heat Wave Tank. The Ultra Luxe Tissue Rib fabrication is a fresh synthetic blend that breathes with you when temperatures rise.