Much like last year, Topps has teamed up with New Era to produce a limited edition card set for fans and collectors. Additionally, they have joined them to create co-branded caps that feature design elements from both the 1987 Topps and 2017 Topps Chrome Baseball card sets. Check them out directly above and below.
Although it is not entirely clear to me, from what I understand the limited edition cards are only available at stadiums across the country. Per a Blowout Buzz:
As part of the promotion, there will be a 32-card set that found only at MLB ballparks when purchasing select Topps and New Era products.