Bundle progress where parents actually decide

Zipster Baby leans on bamboo comfort and two-way zippers so parents get fewer midnight fights with snaps. The brand already had a bundle builder on the site, but day-to-day shoppers barely noticed it while they browsed sizes and prints.

The gap was not the offer logic, it was visibility: parents needed the bundle story back in cart, with progress toward the next count so the path felt obvious, not optional. Upnova designs, builds, and operates the cart experience that reminds shoppers of the bundle and shows clear progress toward the next tier; Zipster approves what ships. The storefront builder stays in place; the lift comes from meeting parents where they actually decide.

A bundle surface on PDP or collections can still feel disconnected once someone lands in cart. If the next step only lives off to the side of the journey, many carts stop at one or two pieces even when another item would have completed the story. Zipster wanted the same economics with persistent, readable cues in cart, not a one-off widget shoppers scroll past once.

Upnova mapped Zipster’s tiered bundle so it surfaces in cart with progress shoppers can parse in a glance: what counts toward the bundle, what is next, and how far they have to go. Zipster keeps merchandising and tone; Upnova runs the mechanics and iteration after Zipster approves creative and guardrails.

The first clip is Zipster’s bundle builder page on the store, the surface shoppers often skipped past. The second is the same bundle story in cart with reminders and progress toward the next count.

Bundle builder page on Zipster’s store​

Bundle builder reminder and progress in cart​

Average order value rose +13% and conversion rose +12% after the bundle experience in the Upnova cart shipped.

Sizes, colours, and seasonal pyjama drops will keep changing. The playbook scales because our team holds the bundle logic while Zipster ships the next collection.