BraSizeX · AI Smart Fit
Find your true fit — not just a number.
Two measurements, your shape, and your fit issues — combined into a personalized US bra size recommendation, sister sizes, and style guidance.
Step 1 of 3
Your measurements
Wrap snugly around your ribcage, directly under your bust. Exhale gently before reading.
30 in
Measure around the fullest part, tape level with the floor. Don’t pull tight.
34 in
Step 2 of 3
Shape & fit issues
Balanced
Projected
Shallow
Wide-Set
Close-Set
Full Top
Full Bottom
Straps slip
Cup gaping
Spillage
Band rides up
Wires poke
Gore floats
Step 3 of 3
Style & coverage
Your results await
Complete all 3 steps to get your personalized fit analysis.
Results are based on your inputs and standard sizing logic. Brand sizing varies — always check the brand’s own size chart when possible.