| Size | Chest (in) | Chest (cm) |
|---|---|---|
| S | 30" – 34" | 76 – 86 cm |
| M | 34" – 38" | 86 – 96 cm |
Size & Fit Guide
Find Your Perfect Fit.
A comfortable fit starts with one simple measurement. Measure your chest, compare it with the Aligna size chart and adjust the straps until the corrector feels snug without limiting natural movement.
Measure First
Keep the measuring tape level around the fullest
part of your chest without pulling it excessively tight.
How to Measure
Measure Your Chest
-
Stand Naturally
Stand upright in a relaxed position. Do not intentionally pull your shoulders back.
-
Measure Your Chest
Wrap a flexible measuring tape around the fullest part of your chest and keep it level.
-
Compare Measurement
Use the size chart below to choose the Aligna size that includes your chest measurement.
Size Chart
Match Your Chest Measurement.
Aligna sizes and measurements below are generated directly from the product configuration.
| Size | Chest (in) | Chest (cm) |
|---|---|---|
| L | 38" – 42" | 96 – 106 cm |
| XL | 42" – 48" | 106 – 122 cm |
One Size — Fully Adjustable
How It Should Fit
Snug. Comfortable. Easy to Move In.
Snug Comfort
The corrector should sit close to the body without creating uncomfortable pressure.
Strap Comfort
Shoulder straps should feel supportive without digging into your skin.
Shoulder Mobility
You should still be able to move your shoulders and arms comfortably.
Back Panel
The central panel should sit between the shoulder blades rather than too high.
Fit Tips
A Better Fit Starts With Small Adjustments.
Even Straps
Begin with similar tension on both shoulder straps, then make small adjustments as needed.
Gentle Start
Excessive tension is unnecessary. Begin with gentle guidance and prioritize comfort.
Recheck Fit
Move your shoulders and arms after adjusting the straps to make sure your fit remains comfortable.
Placement Check
What a Comfortable Fit Looks Like.
Gentle Support.
Aligna should create a gentle reminder around the shoulders rather than forcing them into an extreme position. Keep the back panel centered and the straps comfortably snug.
- Back panel centered between shoulder blades
- Straps sit flat instead of twisting
- Arms and shoulders move comfortably
- No sharp pressure points
Need Help Choosing?
Still Unsure?
Our support team is here to help you understand the size chart and choose the Aligna fit that best matches your measurement.
Found Your Size?
Choose your Aligna color, select your size and continue to the product page.
30-Day Money-Back Guarantee
Measure First
Use a flexible tape around the chest so the size choice starts from a clear number.
Measure Guide
Strap Balance
Set both straps evenly, then make small changes until support feels centered.
Fit Rules
Move Check
Raise and rotate your shoulders after adjusting to make sure comfort stays natural.
Fit Tips