How many trading cards fit in one envelope?
Up to 50 raw cards, spread across three built-in pockets. USPS letter rates step by weight: about 10 cards at 1 oz ($0.82), 26 at 2 oz ($1.11), 41 at 3 oz ($1.40), and 50 at the 3.5 oz letter maximum ($1.69). Penny-sleeved cards run roughly 25% fewer per tier.
Do these really mail at USPS letter rate?
Yes, when the finished mailpiece stays under 1/4" thick and machinable — which is exactly what this envelope is engineered for. Most card mailers fail the thickness test and bump to parcel rates. Always weigh your finished mailpiece and confirm the live rate at usps.com; USPS retains sole discretion over how any individual piece is processed.
Do I still need toploaders, team bags, or tape?
No. The three pockets are built into the envelope itself, so cards slide in and stay put. There is no separate cardboard insert to assemble, no toploader, and no tape. It closes with a peel-and-seal strip and opens with a red tear strip.
How is this different from a 24-card envelope kit?
Those kits top out at 24 cards and require you to assemble a separate cardboard insert for every order. This envelope has the pockets built in, carries more than twice the cards in the same letter, and is not tied to eBay Standard Envelope — so it works on any platform at any order value.
How much does one envelope cost?
The 5-envelope sample is $1.00 flat — $0.20 per envelope, limit 1 per customer. Bulk packs run from $0.35 per envelope on the 100-pack ($34.99) down to $0.30 on the 1,200-envelope case. Every order ships free within the US.
Can letter mail be tracked?
Letter postage doesn't come with a standard USPS tracking number, but every letter is barcode-scanned through the mail stream — USPS Informed Delivery picks up those scans, so delivery can be confirmed when it arrives. For high-value orders, many sellers step up to a tracked parcel service. This is the trade-off that makes letter-rate shipping so much cheaper, and it's worth knowing before you switch.
Can I print addresses and postage right on the envelope?
Yes — these are 100% printable. Print the address, return address and postage straight onto the envelope and it all comes out clean. Prefer labels? The surface takes adhesive labels, Forever stamps and pen without smearing or peeling. The water-resistant stock does not stop ink from setting.
Are they water resistant?
The stock is water-resistant. We put water drops on a loaded envelope, left them five minutes, then wiped them clean — no soak-through, and the cards inside came out unaffected. Water-resistant, not waterproof: built to shrug off rain and spills, not submersion. It's also a heavier stock than a standard plain white envelope. Photos of that test are on our about page.
What's the best way to ship baseball cards?
For small lots of raw baseball or sports cards, the cheapest safe method is a machinable First-Class letter in a pocketed envelope like this one — $0.82–$1.69 in postage instead of $4–$5 for a bubble mailer shipped as a parcel. Modern sports cards share the 2.5" × 3.5" footprint and fit the pockets, but sports stock is thicker and heavier than TCG stock, so counts per postage tier run lower than our TCG chart — always weigh your finished mailpiece. Jersey and relic cards weigh more still, and graded slabs should ship as a tracked parcel instead.
Do Pokémon and sports cards fit the same as MTG?
Dimensionally, yes — baseball, football, basketball, Pokémon, Lorcana and Magic all use the standard 2.5" × 3.5" card, and Yu-Gi-Oh and Japanese Pokémon run slightly smaller and fit the same pockets. Capacity differs by stock: TCG cards run up to 50 raw per envelope (about 25% fewer penny-sleeved), while thicker, heavier sports stock fits fewer per postage tier — weigh your finished mailpiece.
