Clean lines. Fast times. The Speedo Vanquisher Solid Open Back Kneeskin is the go-to tech suit for competitive swimmers who want proven performance in a sleek, solid colorway. Compressive fabric wraps your body in a locked-in, hydrodynamic fit that supports key muscle groups and reduces drag from the moment you hit the water.

The open back design frees your shoulders for a full, unrestricted stroke cycle, while bonded seams create a smooth surface that cuts through the water cleanly. Whether you're racing prelims or finals, this suit delivers championship-level performance at every heat.

FINA-approved and available in 6 colorways including Speedo Black, Blazing Pink, Violet, Blue Ice, Beautiful Blue, and Asphalt.

Key Features:

• Compressive fabric for a locked-in, drag-reducing fit
• Open back design for full shoulder range of motion
• Bonded seams for smooth, hydrodynamic performance
• Solid colorway — clean and race-ready
• FINA-approved for sanctioned competition
• Available in sizes 16–36

⚠️ Sizing Note: This suit runs extremely small, even for a tech suit. We strongly recommend ordering 2 sizes up.

Size Guide (inches):