The Rainy Days

Athleisure & streetwear brand - scaled with technical tracking, Google integration, and a full retention migration and rebuild.

The Brand

The Rainy Days is a UK-based athleisure and streetwear online retailer. Before working with Collective :Holmes, they had strong community momentum but lacked structured acquisition and retention systems to support consistent growth.

Results at a Glance

  • £17,190 generated through Klaviyo (email + SMS) (15% attribution in the first 3 months)
  • 15,570 inactive profiles suppressed via sunset flows
  • 7,639 engaged profiles gained (30-day segment grew to 11,000+)
  • Google Ads rebuilt with clean attribution (Merchant Centre, DataFeedWatch, GA4/GTM)

The Challenge

The Rainy Days had no reliable acquisition channel, with previous paid social activity generating little return. Their CRM was underperforming, and a large disengaged list was hurting deliverability. Engagement was low and attribution unclear, which meant revenue opportunities were being missed despite strong product demand.

The Approach

Google Ads

Rebuilt the account with Merchant Centre, DataFeedWatch, and GA4/GTM integration. Stabilised ROAS through Performance Max and Search campaigns, while adding WordPress and Cookiebot compliance to ensure clean attribution and data integrity.

Retention

Migrated the CRM to Klaviyo, launching both pre- and post-purchase flows alongside a consistent campaign cadence to capture missed revenue opportunities.

Deliverability

Implemented domain-segmented sunset flows, removing 15K+ inactive profiles and restoring list health for stronger inbox placement.

Creative & Strategy

Established engaged 30/90-day segments and delivered campaigns that generated £1,000+ during key trading moments (e.g. Easter).

The Impact

Our work established the foundations Rainy Days needed to grow. Google Ads tracking and compliance were rebuilt, creating clean attribution and a framework for future scaling. The major breakthrough came through Klaviyo: automated flows, consistent campaigns, and list cleaning turned retention into a reliable revenue driver, generating £17K+ in less than six months. Engagement surged, list health was restored, and campaigns began delivering consistent revenue instead of being ignored in the inbox.

Want results like this? See if we’re a fit.

Work With Us