Launching Sydney Sweeney’s SYRN Retention Engine
Background.
SYRN is Sydney Sweeney’s new lingerie brand, which launched on January 28 of 2026, and sold out its initial inventory within 24 hours of going live.
Jetset was brought in on December 3, with less than eight weeks to architect, build, warm, and launch their entire email ecosystem ahead of the site launch. Email was expected to be a primary revenue driver and the engine for long-term demand capture.
Approach.
- Architect Klaviyo for campaigns, automations, and reporting from scratch
- Integrate Shopify transactional messaging with SYRN’s branded email experience
- Establish a dedicated sending domain and authentication for deliverability
- Validate and clean the early-access list using ZeroBounce
- Warm domain reputation through controlled batch sends before launch
- Build modular, mobile-first templates to speed launch and iteration
- Launch six core flows, including welcome, abandon, post-purchase, back-in-stock
Jetset was instrumental in getting us ready for a high-intensity launch and went above and beyond!
SYRN Team
Results.
Jetset took SYRN from a cold start to a fully operational email engine in under eight weeks—built to handle high-volume sends without compromising on deliverability or customer experience.
With no email infrastructure, flows, or sending history, Jetset built SYRN’s templates and automations and ran a controlled warm-up so they could scale immediately post-launch. In the first 30 days live, the program delivered perfect inboxing and exceeded engagement expectations.
As launch sends rolled out, Jetset shifted to engagement-based segmentation to protect inbox placement and concentrate volume on the highest-intent audiences.
When inventory sold out, Jetset used back-in-stock capture to retain high-intent shoppers instead of losing momentum during sell-outs. Today, SYRN has a scalable CRM framework built to support ongoing drops, replenishments, and sustained revenue growth.
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About Jetset.
Jetset partners with fast-growth and enterprise brands to power Bespoke Growth, a wait-listed growth botique across all channels, and CxRM™ – our full-service retention and lifecycle offering that fuses enterprise CX with world-class retention marketing to drive growth, reduce churn, and wow customers.
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