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What does ‘BMWT’ mean – Definition – The Sports Card Glossary

BMWT stands for Bubble Mailer With Tracking.

It’s an abbreviation that is used often within the card collecting community on Twitter, Facebook, IG, etc., when referencing how a trading card will be shipped. The cards will be shipped to you in a bubble mailer. A tracking number will be provided so you can track the delivery of your sports cards in the mail.

Black Bubble Mailers, commonly used to ship sports cards via BMWT.
Bubble mailers are used when shipping sports cards via BMWT. Pictured are black bubble mailers.

Typically two options available: BMWT (Bubble Mailer With Tracking) or PWE (Plain White Envelope). Prices will differ for each option because the USPS rates also differ. BMWT will ship as a “package” (~$4-5 within the US) and PWE will ship as a “letter” ($0.68 to $1.40 up to 3oz).

A few weeks back, I posted a short video to TikTok showing the shiny bubble mailers I use when I ship BMWT. Check it out below.

Shipping Cards With My Favorite Refractor Bubble Mailers. Making sure my cards arrive safely and in style with these awesome refractor bubble mailers ✉️🔥 It’s all about having fun and connecting in this hobby, even if it means splurging a little on packaging 😎 #cardtok #sportscards

♬ original sound – Rorz Cards

Tips when shipping sports cards via BMWT:

  • The default package service that eBay uses when shipping bubble mailers via USPS is USPS Ground Advantage
  • Regardless if you use USPS, UPS or FedEx for shipping bubble mailers, you’ll find the best rates through websites like Pirate Ship. Companies like Pirate Ship negotiate better rates than what you’d be able to get at a USPS retail store then extend those rates to you. It’s common to save 30% or more when shipping via Pirate Ship.
  • Put your cards into a team bag, then use sheets of cardboard on either side of your cards to protect your cards. Secure the sheets of cardboard in place with painters tape. I’ll post a full article on how to safely ship sports cards in the near future.

Rory Hansen

Rory Hansen is a San Diego-based sports card collector and social media influencer. Considered an expert in the process of grading sports cards, he regularly advises other collectors on how to assess, prepare and submit cards for grading. Originally from Canada and now living in the US, Rory collects both hockey cards and baseball cards. His personal collection focuses on Shohei Ohtani, Ichiro Suzuki, Yu Darvish, Pavel Bure, Daniel and Henrik Sedin and Roberto Luongo.