Size & Fitting Guide

Finding your perfect fit is the key to experiencing the ultimate comfort of FLULOOM intimate apparel. Unlike rigid wired bras that require multi-point complex calculations, our seamless jelly bras are crafted with high-elasticity, adaptive fabric designed to effortlessly flex and fit across multiple traditional cup sizes.

Please Note: Size charts vary by style depending on fabric elasticity and cut. Please check the specific Size Chart image on each product page for exact measurements before purchasing.

How to Measure Your Bra Size

To get the most accurate measurement, wear an unpadded bra or measure over bare skin. Keep the measuring tape snug, horizontal, and parallel to the floor.

1. Underbust (Band Size)

Measure around your ribcage directly under your bust, right where your bra band sits. Make sure the tape is snug and you are breathing out naturally.

2. Overbust (Bust Size)

Measure around the fullest part of your bust, keeping the measuring tape straight across your back and comfortable around your chest.

Pro Measurement Tip: If you have softer or fuller bust tissue, bend forward slightly at a 45-degree angle when measuring your Overbust. This ensures the measuring tape captures your full natural bust shape without compression.

Expert Fit Tips for Seamless Bras

• Between Sizes? If your measurements fall between two sizes, we recommend sizing up for a relaxed, zero-pressure everyday fit, or sizing down if you prefer a firmer hold and extra support.
• Fuller Cups (D+ Cups): Our seamless jelly technology offers exceptional stretch. If you have a D cup or above, we suggest choosing one size larger than your underbust measurement suggests for full coverage without spilling.
• Fabric Adaptation: FLULOOM bras naturally contour to your unique body shape after 1–2 wears to create a custom second-skin feel.

Need Personal Fitting Assistance?

Still unsure about your size? Our fit experts are here to help you find your flawless fit!

Contact us anytime at service@fluloom.com with your underbust/overbust measurements and usual bra size, and we’ll respond with a personalized recommendation within 24 hours.