Shimamura x Glamour Princess Launch Plus-Size Bra Collaboration Online

Jun 9
2 min read

Updated: Jun 28

RosePlusJapan glamour princess shimapocha march big size bra collab

Shimamura is teaming up with plus size lingerie brand Glamour Princess for a new collaboration launching online at Shimamura’s new plus size online store, Shimapocha Marche, from Wednesday, July 1, 2026.

The collection features Glamour Princess bras and matching shorts designed specifically for plus-size bodies, with a focus on comfort, support, and an affordable Shimamura price point.

A collaboration focused on plus size lingerie

Glamour Princess is known for its wide size range and specializes in plus size lingerie. For this collaboration, the brand is bringing the pattern from its long-running wired bra series, Beautiful Bust Keeper, to Shimamura.

The goal was to create lingerie that offers both support and comfort while also being easier to buy at a more affordable price. Since Shimamura already carries larger sizes, the collaboration feels like a natural fit.

RosePlusJapan glamour princess Beautiful Bust Keeper big size bra

What is the “Beautiful Bust Keeper” bra?

The Beautiful Bust Keeper series was developed specifically for plus size customers. The bra is designed to help keep the bust in place, reduce side spillage, and create a more rounded silhouette.

According to Glamour Princess, some of the key features include:

two side bones for support
a high side design to help hold the bust
a stable U-shaped back
a three-row, three-column hook closure
an underwire angled to reduce irritation against the skin
removable pads for adjusting volume and balancing asymmetry
moisture-wicking, quick-drying fabric inside the cups
stretchy mesh from the sides to the back for a secure fit
straps designed to be less likely to slip off the shoulders

Shimamura x Glamour Princess lineup

This collection will feature affordable bras and matching panties sold separately (which is great for those who wear different sizes!) Sizes go up to a (Japanese size) H100, which is equivalent to about a US size J or H 44. The panties will be sold in sizes up to 8L.