Invested Alliance 500-Pack Resealable Team Bags for Trading Cards – 3 3/8" x 5" Clear Polypropylene Sleeves for Toploaders, Magnetic Holders, and Sports Card Protection

The Invested Alliance Resealable Team Bags are a 500-count pack of clear polypropylene sleeves sized at 3 3/8 x 5 inches with a 1-inch resealable flap. Designed to fit standard toploaders, soft sleeves, semi-rigid and magnetic holders, they offer protection against dust, fingerprints, and scratches. These bags are a go-to choice for collectors and sellers looking to keep cards in mint condition during storage, shipping, or display.

What card holders do these bags fit?

These team bags are sized to accommodate standard trading card toploaders, soft sleeves, semi-rigid holders, and magnetic holders. The 3 3/8" x 5" dimensions with a 1" flap provide enough room to slide in a sleeved or toploaded card snugly. Whether you're storing a single PSA slab or a team set of baseball cards, the fit is designed to work across common holder formats.

Material and archival quality

Each bag is made from ultra-transparent polypropylene, a material chosen for its clarity and durability. They are 100% acid-free and PVC-free, which helps prevent yellowing, clouding, or chemical damage over time. This makes them suitable for long-term storage of valuable cards without worrying about degradation.

Resealable closure details

The adhesive strip on these bags seals securely, opens cleanly, and retains its stickiness through multiple uses. This is especially useful for sellers who need to inspect or replace cards frequently. The closure is strong enough to keep dust and moisture out, yet easy to open without tearing the bag.

Technical specs at a glance

Frequently asked questions

Are these bags reusable?

Yes. The resealable adhesive flap is designed to be opened and closed multiple times while maintaining its stickiness. This makes them practical for collectors who frequently reorganize their cards or for sellers checking inventory.

What is the bag size?

Each bag measures 3 3/8 inches wide by 5 inches tall, plus a 1-inch resealable flap. This fits standard toploaders and most card holders comfortably.

Is the material safe for long-term storage?

The polypropylene is archival-grade, meaning it is acid-free and PVC-free. It will not yellow or release harmful chemicals over time, so your cards stay protected.

How many bags are in the pack?

You get 500 bags in one pack, which is a practical quantity for both personal collections and business use.