HSIA FlexCore High Impact Racerback Sports Bra Adjustable Support Full Coverage Fit

Style Note & New Colors Update

By popular demand for maximum security during explosive workouts, we are focusing on our classic Pullover Edition.

Both the zipper and pullover styles share the exact same premium fabric, high-impact support, and breathable cooling tech. To celebrate, we’ve launched 5 brand-new colors! Our remaining stock for the zipper version is highly limited and will not be restocked once sold out.

️️ Unshakable Focus: The Ultimate High-Impact Solution for Full Figures

Say goodbye to painful bounce, shifting pads, and suffocating sweat. The HSIA FlexCore Series is engineered specifically for full-busted women who love running, jumping, HIIT, and intensive gym workouts.

Combining wire-free freedom with heavy-duty bounce control, this sports bra delivers rock-solid stability and all-day comfort, keeping you focused and locked-in.

Why the HSIA FlexCore and Powermove a Workout Game-Changer:

High-Impact Bounce Control & Supportive Lift:

Engineered for Intense Movement:

Built for running, aerobics, and cardio. The ultra-elastic underband hugs your ribs firmly, absorbing shock and providing 360° stability to eliminate painful bouncing.

Wire-Free All-Day Comfort:

Enjoy professional-grade high support completely free of digging underwires for a secure hold that feels natural yet incredibly powerful.

Full-Coverage Security & No-Spill Silhouette:

Friendly to Big Breasts:

The full-cup design completely encompasses your bust, smoothing side bulges and preventing top or side spillage so everything stays perfectly in place.

Skin-Friendly & Anti-Showthrough:

Crafted from premium, opaque fabric with official OEKO-TEX Certification for skin safety. It offers smooth concealment without any show-through.

3D Fixed Cups & Easy Laundry Maintenance:

Zero Pad Shifting:

Integrated 3D molded, ultra-thin fixed inner cups will never slide, bunch up, or move out of place while you are sprinting or jumping.

Laundry Day Hero:

No more re-inserting or fixing twisted pads after washing. These cups maintain their shape permanently—just throw it in the wash and tumble dry.

Advanced Dual-Zone Moisture Management:

Zero-Sweat Sensation:

Both the outer fabric and inner lining feature moisture-wicking technology to pull sweat away instantly and prevent a sticky, suffocating feeling.

Racerback Mesh Ventilation:

The racerback design combines structural stability with a targeted mesh cooling zone, releasing heat where you sweat the most.

The Precision Fit System for Fuller Busts:

6-Stage Padded Relief Straps:

Innovative 6-stage adjustable hook-and-loop straps allow you to fine-tune your lift. Extra-wide, plush cushioned lining puts an end to shoulder digging.

Customizable Back Closure:

Features an adjustable 3-row hook-and-eye back clasp to adapt effortlessly to different underband sizes for a truly personalized fit.

Fabric & Care Specs

Materials: Premium High-Elasticity Moisture-Wicking Blend (OEKO-TEX Certified Skin-Safe Fabric).

Design Features:

Wire-free, 3D Fixed Thin Molded Cups, Full Coverage, Racerback Mesh, 6-Stage Padded Straps, 3-Row Back Closure.

Care Instructions:

Machine washable! Thanks to fixed cup engineering, it holds its shape perfectly without warping (using a laundry bag is recommended).

a. Available in sizes M¨C5XL
b. Available colors run with the same size

63% Nylon, 37% Spandex

Handling Time 
In general case, please allow us to take up to 2 business days to prepare the package.

Shipping Methods

Free Shipping Eligibility
Enjoy free standard shipping on all HSIA intimate apparel orders totaling $50 USD or more.

International Orders

For customers in countries outside the U.S. purchasing with non-USD currencies:

• Order values must convert to $50 USD or more to qualify for free shipping
• Exchange rates are calculated based on the daily international exchange rate (reference table provided for estimation purposes only)

Standard Shipping Fees

Orders below the $50 USD threshold:

• $6.99 USD shipping fee for U.S. addresses
• International shipping fees calculated at checkout based on converted USD value

Delivery Restrictions

We currently cannot ship to:

• APO/FPO addresses
• U.S. territories: Puerto Rico, Guam, U.S. Virgin Islands
• U.S. states: Alaska, Hawaii

SHIPMENT TRACKING
You will be notified by email automatically with the tracking number and tracking way once your order is marked as fulfillment status. Or you can directly reach out to us via contact form.

WRONG ADDRESS
We know mistakes do happen! Please email us immediately! We can only fix this for you if the order has not been shipped out yet.

LOST OR STOLEN PACKAGES
If you believe that your package was lost or stolen, please directly reach out to us via contact form.

DUTIES AND TAXES
Customers shall be responsible for customs clearance, Duty and Tax. All international packages may be subject to duties and taxes. The limits for duty-free packages are established by your local customs authorities. Please check your local customs website for more information.