Popsugar Fitness Swimwear Best Athletic Swimwear 11 Athletic Swimsuits That Are Both Functional and Cute March 31, 2018 by Krista Jones View On One Page Photo 3 of 11 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 3 Speedo Plus-Size One-Piece Swimsuit This Speedo Plus-Size One-Piece Swimsuit ($74) is made from a four-way stretch material, which is both comfortable and supportive. Plus Size Ultraback One Piece Swimsuit 74 from Zappos Buy Now Previous Next Start Slideshow SwimwearFitness GearBikinisShopping