First Class Lingerie

First Class Lingerie is a curated online boutique specializing in high-quality Brazilian lingerie for the Japanese market. Launched in February 2021, the business began by selling through Instagram and WhatsApp, focusing on personalized service and product quality. In April 2022, the company expanded its sales channels with the launch of a standalone e-commerce site to provide customers with a convenient, 24/7 shopping experience.

The challenge

First Class Lingerie’s initial online presence depended entirely on social channels and direct messaging platforms. While this approach fostered close customer relationships, it limited the brand’s ability to scale. Manual order management, fragmented customer interactions, and restricted shopping hours made it difficult to build repeat business, improve operational efficiency, and capture growth opportunities in the competitive Japanese e-commerce landscape.

At the same time, off-the-shelf e-commerce platforms introduced limitations in flexibility, ongoing costs, and control over customer experience. For a growing business with a clearly defined audience, these constraints made it difficult to iterate quickly and adapt the platform to real operational needs.

Abtz Labs' approach

To address these requirements, First Class Lingerie adopted KiwiCart, a cloud-based e-commerce platform developed by Abtz Labs and designed for businesses that require flexibility, performance, and operational control.

KiwiCart served as the complete foundation for the First Class Lingerie website, enabling:

• A streamlined purchasing experience optimized for mobile users
• Tight integration with social commerce workflows
• Operational features tailored to inventory management, order processing, and customer communication
• A stable and maintainable architecture that supports continuous improvement

Despite being developed within the Abtz Labs ecosystem, KiwiCart was applied, configured, customized, and validated through real-world commercial use.

Results and impact

Since launch, First Class Lingerie has operated entirely on KiwiCart as its core commerce platform. The system has supported consistent online sales, enabled rapid iteration of marketing campaigns, and provided the operational reliability required to manage imports, inventory, and customer service efficiently.

Along the way, the business has achieved eight-figure revenue in yen, supported by a platform designed to scale steadily while maintaining operational stability. For Abtz Labs, this project also serves as a production-grade validation of KiwiCart, demonstrating its ability to support a live, revenue-generating e-commerce business in the Japanese market under real operational conditions.