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Upper Deck’s 2026/27 Series 1 Hockey Advent Calendar brings a holiday twist to the opening chapter of the season. Scheduled for release on Nov. 11, 2026, this Hobby-format case delivers 12 boxes per case, with 24 packs per box and 4 cards per pack. It is built around the first wave of the 2026-27 Upper Deck base set while also spotlighting some of the brand’s most recognizable rookie and insert programs.
Series One covers the first 250 cards of the 2026-27 Upper Deck Base Set. That checklist includes 198 veteran cards, 49 Young Guns cards and three additional cards, giving collectors a broad mix of established stars and the season’s most anticipated rookie chase. Young Guns remain one of the most popular rookie cards in hockey, and this release is positioned to feature multiple high-end rookies among its key pulls.
The foundation of the product is the 250-card base set, which continues Upper Deck’s traditional Series One structure. Collectors can expect a strong veteran lineup alongside the always-important Young Guns subset. With 49 Young Guns cards included, the product offers a substantial rookie presence right out of the gate, making it a natural starting point for collectors following the 2026-27 NHL season.
Upper Deck Series One has long been known for setting the tone for the year, and this edition continues that approach with a checklist that balances star power and rookie appeal. The source highlights that the release boasts multiple high-end rookies, reinforcing the product’s place as an early-season target for collectors who want to chase the first major rookie cards of the year.
The Dazzlers insert set is back for another season, and the Advent Calendar format gives it a festive spin. These colorful cards arrive in a new design for 2026-27, with the Advent Calendar featuring holiday-themed Red & Green versions. The set is described as consisting mostly of star veterans, though a couple of top rookies are included as well. That mix should give the insert both broad star appeal and a few added rookie chase points.
Dazzlers has become one of the more visually distinctive Upper Deck inserts, and the holiday versions are a natural fit for this product format. The new design adds another layer of freshness to a familiar favorite, while the Red & Green treatment gives collectors a seasonal variation that stands apart from the standard release.
Another returning favorite is UD Portraits, which appears for its third season on foilboard. For 2026-27, the set adopts a new look inspired by movie posters, giving the cards a different visual identity while keeping the premium foilboard presentation. Series One includes the first 30 cards of this intra-series set, and the checklist features veteran stars and top rookies.
UD Portraits has become a dependable showcase for some of the biggest names in the product, and the updated design should make this year’s edition stand out even more. Because the set includes both veterans and rookies, it offers a nice bridge between established talent and the next wave of NHL standouts.
Sizzle Reel returns as a foilboard insert set that celebrates top highlight-reel plays from the 2025-26 season. The first 35 cards of the intra-series set are included in Series One, and each card featuring a star player includes a QR code on the back that links to the video of the featured highlight. That added digital element gives the insert a modern twist while keeping the focus on memorable on-ice moments.
The combination of foilboard construction and video tie-ins makes Sizzle Reel one of the more interactive inserts in the product. It is built to appeal to collectors who enjoy cards that capture specific moments rather than just player portraits, and the highlight-driven concept fits well within Upper Deck’s broader insert lineup.
In addition to the returning favorites, Series One includes a pair of new themed insert sets: Debut Dates and Here We Go! The source does not provide further checklist details for these inserts, but their inclusion adds fresh chase material to the release and broadens the range of cards collectors can look for in each box.
That mix of familiar staples and new ideas is part of what keeps Series One relevant year after year. Collectors get the expected base-set structure and rookie chase, but they also have multiple insert paths to pursue, from holiday-themed Dazzlers to the movie-poster-inspired UD Portraits and the highlight-driven Sizzle Reel cards.
As a 12-box case product, the 2026/27 Upper Deck Series 1 Hockey Advent Calendar is designed to deliver a substantial opening experience. The 24 packs per box and 4 cards per pack configuration creates plenty of opportunities to chase base cards, Young Guns rookies and the various insert sets included in the release. With the Advent Calendar format layered on top of Series One’s standard structure, the product offers a seasonal presentation without losing the core appeal of Upper Deck’s flagship hockey line.
For collectors, the main draw remains the combination of the first 250 cards of the base set and the Young Guns subset. Around that foundation, the product adds several recognizable insert programs and a few new ideas to keep the checklist fresh. The result is a release that should appeal to both set builders and collectors focused on rookies, inserts and visually distinctive parallels within the Series One framework.
With its flagship base set structure, strong rookie presence and a lineup of returning and new inserts, the 2026/27 Upper Deck Series 1 Hockey Advent Calendar offers a festive take on one of hockey card collecting’s most important annual releases.
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