Jantzen Swimwear Jantzen is a classic swimwear brand that blends timeless style with modern support and practicality. Renowned for its flattering one-piece suits, iconic prints, and inclusive sizing, Jantzen swimwear has been empowering women to feel confident at the beach and pool for over a century. Their swimwear emphasizes comfort, style, and durability. At Sundaze, we offer a selection of Jantzen swimsuits featuring tummy control panels, soft cups, ruching, and adjustable straps to flatter every shape. If you want a swimsuit that provides security, smooths where needed, and remains timeless—Jantzen is a trustworthy and beautifully crafted option. Swimwear designed for real bodies and true comfort.