Rosey Isle Size Chart
Bra Size Guide
For detailed measurement instructions and how to calculate your band and cup size, please refer to our How to Measure page
How to Use This Size Chart
Find Your Band Size: Measure your underbust (around your ribcage, just below your bust) and locate the range in the Underbust (cm) column.
Find Your Cup Size: Measure your bust (the fullest part of your chest) and find the corresponding range in the Bust (inch/cm) column.
Determine Your Size: Locate your measurements in the Cup/Band column to determine your corresponding Size.
For more details on measuring and calculating your bra size, visit our How to Measure page.
Underwear Size Guide
To ensure the best fit, our underwear sizing is based on body circumference measurements, combined with the actual stretch of the fabric.
Lingerie Size Guide – Essential Collection
Our Essential Collection underwear is designed with soft, high-stretch fabric, making it adaptable and comfortable for everyday wear.
The flexible fit allows for greater size versatility, making it perfect for stocking up on your daily essentials.
Size Guide:
- S/M: Best suited for XS - S wearers, offering a snug and comfortable fit for everyday wear.
- M/L: Designed for S - L users, featuring high stretchability for a more adaptive fit.
- L/XL: Ideal for L - XL users, ensuring full coverage and extra comfort.
If your waist or hip measurements fall between two sizes, consider choosing based on your preferred fit—opt for a smaller size for a snug fit or a larger size for a more relaxed feel.
Lingerie Size Guide – Sexy Collection
Our Sexy Collection is designed to complement our lingerie sets, featuring matching fabrics and patterns for a seamless, cohesive look.
Unlike our Essential Collection, which prioritizes everyday comfort, this collection is designed for a closer fit.
To achieve the perfect match, we recommend pairing these with their corresponding lingerie sets.
Use the size guide below to find your ideal fit.
Find Your Perfect Fit
For a sculpted fit: Stick to your usual size for a sleek, body-hugging silhouette.
For added comfort: Size up for a more relaxed feel without sacrificing support.
For reference: Our size chart is based on actual body measurements. If you’re comparing with other brands, check your waist and hip measurements rather than relying on letter sizes.
Tip: If you’re between sizes, we recommend sizing up for comfort and the best fit.
Women's Underwear Styles
Not sure which style is for you? See our breakdown below.
Hipster
Bikini
