About Case-it
Case-it is a school-and-office supply maker based in New Jersey that describes itself as "revolutionizing school supplies for over 35 years," and it built that reputation around one category in particular: the zipper binder. Where a standard three-ring binder is open on three sides, Case-it's design wraps a full-perimeter zipper around the whole binder so pages can't slide out if it's tossed in a backpack or stored on its side. The company holds multiple patents on its binder and accessory designs, with more pending, and constructs them from a kraft-board core reinforced with ripstop nylon gussets at the seams and stress points.
The catalog extends beyond the core binder line into padfolios and faux-leather professional cases, standard and clear backpacks, laptop sleeves, pencil cases, tech cases, and file-folder organization accessories, sold through Amazon, Staples, Target, and Walmart in addition to its own site. In our testing, the flagship Mighty Zip Tab 3" Zipper Binder showed what the category is built for at scale: a 600-sheet O-ring capacity paired with a built-in five-subject tabbed file, wrapped in a heavy-duty fabric exterior that held up to sustained daily backpack use noticeably better than the lighter polypropylene covers common on standard ring binders.
Brand website: caseit.com
What Case-it makes
Case-it's range runs wider than the products we review. The lines we know best from our own testing are marked with a star:
Zipper binders
O-ring, full-perimeter zip closure — featured on DeskRated
Padfolios & professional cases
faux leather
Backpacks
standard & clear styles
Laptop & tech cases
sleeves and organizers
Pencil cases & accessories
zipper pouches, file folders
Why we recognized Case-it
The DeskRated Top Brand recognition isn't paid for and can't be applied for. We award it to the brands whose products consistently stand out in our hands-on category reviews. Case-it earned it on the strength of the products below, evaluated the same way every product on this site is: bought, used at a real desk, and judged on merit.
Case-it products we rated highly
Case-it Mighty Zip Tab 3" Zipper Binder
One of our top picks for students who need their entire academic life in one unit. In our testing, the 600-sheet O-ring capacity plus a full five-subject tabbed file replaced a separate accordion folder outright, and the heavy-duty fabric exterior proved noticeably more abrasion-resistant than the standard polypropylene covers common on ring binders, holding up to sustained daily backpack use without surface cracking. A padded shoulder strap and handle make the fully loaded binder practical to carry hands-free. It carries a 4.5-star rating across more than 19,000 verified reviews, one of the deeper review bases we've seen among zipper binders.
Read the 7 Best Binders for School of 2026 (3-Ring Binders, Tested & Ranked) guide →What earned Case-it the recognition
- The highest-capacity zipper binder in our binder testing, with 600 sheets of O-ring capacity plus a built-in five-subject tabbed file that functions as a standalone class-by-class organizer
- A heavy-duty fabric exterior that held up to sustained daily backpack use in our testing without the surface cracking we observed on lighter polypropylene covers
- A full-perimeter zipper closure that secures papers on all sides, addressing the open-edge spill risk of a standard three-ring binder
- A padded shoulder strap and carry handle that make a fully loaded, near-backpack-weight binder practical to carry hands-free
- A 4.5-star rating across more than 19,000 verified reviews, reflecting sustained real-world use at scale