Speedo Women's One Piece Endurance+ Flyback Solid (Style TK2F)

Our review of the Speedo Women's One Piece Endurance+ Flyback Solid finds it best suited to regular swimmers and competitive trainees who need a suit that holds shape and color through heavy use. The single biggest reason to buy is the Endurance+ fabric: a 50/50 Polyester/PBT blend engineered for exceptional chlorine resistance and long-lasting stretch, so the suit keeps a streamlined fit session after session. It performs like a practical training piece rather than a fashion swimsuit, prioritizing durability, quick drying and simple, athletic styling.

Key Features

• Endurance+ fabric: 50% Polyester/50% PBT construction that is engineered to resist chlorine and retain color and shape far longer than standard fabrics.
• Four-way stretch: The fabric stretches in all directions to provide a snug, body-hugging fit that supports freestyle, backstroke and flip turns without restricting movement.
• Thin flyback straps: Streamlined straps are reinforced with overlap binding for improved durability and greater shoulder freedom during repetitive strokes.
• Quick-drying finish: The material sheds water and dries faster than many traditional suits, making it convenient for daily training and rapid turnarounds between sessions.
• High racing cut: The cut is performance-focused to reduce drag and present an athletic silhouette useful in meets and lap work.

Who It's For

This one-piece is aimed at competitive swimmers, masters swimmers and anyone who spends frequent hours in a chlorinated pool and needs a suit that will not fade or sag after a few seasons. It is especially appropriate for team practices where durability and consistent fit matter more than fashion-forward features.

Swimmers who prioritize maximum comfort in the shoulder area or need an adjustable strap system may want to look elsewhere, because some customers report a tighter feel in the shoulder straps despite the four-way stretch. Casual beach users seeking soft, leisure-focused fabrics might also prefer a different style.

Pros & Cons

Pros

• Long-lasting Endurance+ fabric that is 20 times more fade resistant than standard swimwear fabric.
• Four-way stretch provides a close, performance-oriented fit that retains shape over time.
• Reinforced thin straps give sporty freedom of movement and enhanced strap durability.

Cons

• Fit is mixed for some users, with a few reporting tight shoulder straps that may feel restrictive for broader shoulders.

Specifications

Brand	Speedo
Fabric	50% Polyester / 50% PBT Endurance+
Chlorine resistance	Up to 20x longer life than conventional fabrics
Stretch	Four-way stretch
Strap style	Thin flyback straps with overlap binding
Cut	High racing cut, front and back lined

Our Verdict

The Speedo Endurance+ Flyback is a strong choice for swimmers who need a dependable training suit that lasts through chlorine exposure and frequent use. Its fabric and construction justify the investment for team practice and competition prep, though those needing a roomier shoulder fit should try it on before committing.

Frequently Asked Questions

Is this suit good for regular pool training?
Yes. The Endurance+ fabric and reinforced straps are designed for frequent use and heavy chlorine exposure.

Will it hold color and shape after months of use?
Customers report excellent durability; the fabric is formulated to be up to 20 times more fade resistant than standard swimwear fabrics.

Does the suit have adjustable straps?
No. The flyback thin straps are not adjustable, and some users find them snug across the shoulders.