Wacoal Women's Sport Full Figure Underwire Bra - High (Style KO4Y)

Our review of the Wacoal Women's Sport Full Figure Underwire Bra finds it best suited for women with fuller busts who need reliable, high-impact support without sacrificing breathability. The single biggest reason to buy is its combination of an outside cushioned underwire and a hidden sling for extra structure, which together reduce bounce and keep the chest secure during running and intense workouts. Reviewers repeatedly noted the bra holds in place and offers a comfortable fit for many, making it a strong pick for serious activity.

Key Features

• High impact support: Built to reduce bounce so running, training, and intense workouts feel more controlled and secure.
• Outside underwire design: A cushioned outside underwire delivers lift and separation while helping to prevent chafing along the wire line.
• Unlined and breathable: Unlined cups, moisture-wicking fabric, and a mesh back work together to keep skin cool and dry during long sessions.
• Extra support for fuller cups: A built-in hidden sling adds structure and shape specifically in G to I cup sizes for improved comfort and silhouette.
• Adjustable fit: Slide-and-hook strap adjusters and a secure hook-and-eye back closure allow for a customized fit that minimizes movement.

Who It's For

The bra is aimed at women with full figures who need a sports bra that performs in high-impact activities like running, HIIT, and vigorous training; it works particularly well for those in G to I cups who benefit from the hidden sling and structural shaping. The breathable, unlined design also suits anyone who prefers less padding and wants moisture-wicking fabric for sweaty workouts.

Those who should look elsewhere include people who prefer molded or heavily padded cups for shaping or modesty, and shoppers who need a bra cut especially wide or long in the band if they consistently find cup or band sizes run small in this style.

Pros & Cons

Pros

• Strong, reliable support that keeps the chest secure during high-impact exercise.
• Comfortable outside underwire with cushioning that minimizes chafing while providing lift.
• Breathable, unlined cups and mesh back for moisture control and cooler wear.
• Hidden sling provides extra structure and shape for fuller cup sizes.

Cons

• Some shoppers report that sizing can run small or feel tight, so careful size selection is important.
• Unlined cups may not provide the coverage or molded shape some users prefer.

Specifications

Our Verdict

The Wacoal Women's Sport Full Figure Underwire Bra is a smart buy for fuller-busted women who need dependable, high-impact support and prefer an unlined, breathable design. Its outside underwire and hidden sling offer lift and structure that hold up during intense workouts, making it good value for those prioritizing support over molded shaping.

Frequently Asked Questions

Is this bra good for running?
Yes, the bra is designed for high-impact activities and reviewers report it reduces bounce effectively during running.

Does it provide support for G to I cup sizes?
Yes, it includes a hidden sling specifically to add support and shape for G through I cup sizes.

Are the cups padded?
No, the cups are unlined for a breathable feel; this may suit those who prefer less padding but not those seeking molded shape.