Sportmodezip -

Racerback cut-out, removable halter cups, and underbust elastic for support.

A high-neck, sporty one-piece with a functional front zipper and contrast binding. Sportmodezip

Based on your search, the "Sport Mode Zip" appears to be primarily associated with a popular . removable halter cups

Listed at retailers such as Nordstrom, Bask Boutique, and Amazon. and Amazon. Note: Another item

Note: Another item, the "Sport Mode Zip Through Hoodie" from Lorna Jane, also exists, offering a cotton-blend fleece, hooded, full-zip option.