Who are SIRPLUS?
SIRPLUS has been redefining modern menswear with a sustainable twist, proving that fashion and responsibility can go hand in hand. Known for their impeccable craftsmanship and innovative use of surplus fabrics, the London-based brand has carved out a niche by transforming high-quality offcuts into timeless, wearable pieces. Their collections celebrate both heritage and innovation, blending classic tailoring with contemporary, effortless style that speaks to the modern man.
More than just a clothing brand, SIRPLUS is built on the belief that sustainability shouldn’t mean compromise—whether in quality, fit, or design. Every garment tells a story of thoughtful production and conscious consumption, appealing to customers who value both craftsmanship and environmental responsibility. By bridging tradition with forward-thinking design, SIRPLUS has cultivated a loyal community of customers who appreciate style with substance—pieces that feel as good to wear as they do for the planet.
Lost in the Thread: When Checkouts Go Unfinished
Like many eCommerce brands, SIRPLUS faced the familiar challenge of abandoned checkouts—customers showing clear intent by adding products to their carts but not completing the purchase. While automated follow-up emails attempted to bring them back, rising inbox fatigue means many go unopened, leaving potential sales untapped. These aren't lost customers—just ones in need of a well-timed nudge to help them over the finish line.
Rather than adding to the noise of digital reminders, SIRPLUS saw an opportunity to re-engage customers in a way that feels more tangible, personal, and unexpected. They need a solution that fits seamlessly into their existing Klaviyo flows while delivering a more deliberate and effective touchpoint right to customers’ doors.
A Tailor-Made solution
SIRPLUS teamed up with Paper Run to integrate automated direct mail flows into their Klaviyo flows, ensuring that abandoned checkout customers received a timely, tangible reminder of their unfinished purchase. They only sent mail to customers who hadn't opened their emails, to ensure minimum cost and maximum impact.
The flows feature:
Personalized postcards with dynamic content tailored to each customer’s abandoned basket
Integration with Klaviyo, automatically triggering mailers when customers left items behind
Exclusive incentives to encourage conversions, without relying on digital-only touchpoints
Premium design that reflected SIRPLIUS’ sleek and sophisticated brand identity
Perfect Fit: Automated Direct Mail results
The flows are delivering strong, measurable impact:
11X ROAS, proving that a well-timed, well-designed direct mail piece can turn hesitation into action, when email doesn't cut the mustard
2.5% conversion rate
By integrating direct mail with their existing email and SMS flows, SIRPLUS is turning abandoned checkouts into purchases — for those customers that email can't reach.
Founder and CEO, SIRPLUS
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