The smallest H20 Swimwear size for women is a size 4 in swimsuits. Cover-ups, tights, swim shorts, aqua shirts and swim skirts are also sold at H20 Swimwear; the smallest size in these types of items is extra-small.
Measurement requirements stated on the H20 Swimwear size chart for a size 4 or extra-small are 33 1/2-inch bust, 24 1/2-inch waist and 35 1/2 inch-hips. Torso length is also a consideration for sizing when choosing a suit or other apparel from H20 Swimwear. Suits for a size 4 are available in short torso, regular torso and long torso lengths. Swimwear is also available in sizes as large as 32 or 4X.