Budgie Briefs – Packing Underwear

$20.00 USD$30.00 USD

(11 customer reviews)

This 95% cotton 5% elastane blend, super comfortable, soft and stretchy packer underwear is designed specifically to be utilized with Transthetics products. It is compatible with the Joystick and the EZP/EZP Junior.

Order any four Budgies and only pay for three!
Just use coupon code “fourth-is-free” on check out.

Current wait time is UP TO two weeks on dispatch.

Sizing is based on standard men’s pant/jeans sizes, or measuring the narrowest part of the waist in inches.

* For more info on discontinued options, click here.

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SKU: BU Categories: , ,


In honor of the great Australian budgie smuggler, Transthetics is releasing the Budgie Briefs packing underwear, designed specifically to be utilized with Transthetics products.

Having gone through a huge assortment of underwear over the last couple of years, in search of the perfect pair to use with the EZP, I came to the conclusion, that they just didn’t exist… until now.

Over this time, I have trialed and recommended a bunch of underwear, all with their own sets of strengths and weaknesses. Having combined the strengths and eliminated the weaknesses, then throwing in some unique design elements, the budgies have now been released from captivity!


  • Unique double horizontal door design for easy use with the EZP and EZP Junior.
  • Re-enforced crotch seam and attachment loop for use with the Joystick.
  • 95% cotton, 5% elastane blend for a soft and comfortable, no stretch fit.
  • Available as briefs and boxer briefs.
  • Also available as swimwear.

To see an overview video of features, check out the video below.

What are the differences between the Budgie Briefs and Budgie Boxer Briefs?

  • The Joystick does work slightly better with the briefs than the boxer briefs. Due to the nature of boxer briefs being wider in the crotch, they won’t hold it in place quite as effectively. Also, remember, you can alter ANY snug fitting underwear to be used with the Joystick, by sewing a loop into the appropriate location.
  • Whereas the briefs have a double horizontal door design, the boxer briefs have an internal horizontal door and external vertical door with a button closure.

Ultimately, it comes down to personal preference. A lot of guys prefer boxer briefs over briefs, but from a purely functional perspective, especially with the Joystick, the briefs do perform slightly better. For the EZP, I’d say both function equally well.


27-28″ x-small,
29-30″ small,
31-32″ medium,
33-34″ large,
35-36″ x-large

95% cotton
5% elastane blend

Black with white trim.


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11 reviews for Budgie Briefs – Packing Underwear

  1. Jimbo

    Unlike a lot of other briefs, these don’t cut in around the legs at all! They are snug, but really comfortable and make using the EZP sooo easy. The cotton has a little bit of stretch in it, but they don’t go baggy and feel really nice. Overall quality is awesome!

  2. Derrick

    Makes the EZP super easy-peezy to pee with!! lol

  3. James

    The design of the horizontal/vertical door design is genius, but in all honesty, I wish they also offered the option of making the entire underwear quick dry material. Hoping for this in the future, but thanks for a great design :)

  4. Troy (verified owner)

    I wanted to give it a decent amount of time to properly attune to the products before I sent in any feedback. Firstly, the briefs are super comfortable. And as a guy with fabric-related sensory issues, that’s a giant plus, especially when they’re pants and right against rather sensitive areas. I think you’re right in saying the loop positioning is slightly different for everyone, but I’m very glad to have it regardless of whether or not I have to shift the Bono somewhat. I haven’t a partner to use it with, so I can only give feedback from solo usage. I find psychologically that having something like that to hold the Bono in place while I go about my business is a fantastic bonus, even if the loop isn’t quite in the ideal position for me personally. I didn’t get the silicone head attachment, but I think having it would give the loop’s positioning a greater range of, ahem, access. As far as usage with the EZP, I found that the horizontal slit gave me a bit of trouble, as I’m rather used to just going over my pants rather than through the openings. (There was also an odd sort of learning curve for actually putting the EZP into position just to wear it, but I think that’s rather on me being a tad bit a dunce than anything else.) Honestly, though, once I’d worked out how to actually combine the EZP with the pants and the opening, it was the easiest time I’d had using the EZP, hands down. I don’t wear these pants every day by a long shot, but having a pair of pants that I can just use through the opening is an oddly mind-blowing thing for me, and I hadn’t expected to be quite so amazed as I was. I do wish I’d gotten a pair of boxer-briefs, as I prefer them to briefs (I only started wearing briefs because I love the EZP so much, actually, and my boxer-briefs get more noticeably loose before briefs do) so that I’d have a solid comparison and a review of both, but I definitely don’t regret getting the Budgies at all. My own personal ditzy moments and everyone’s slight anatomical variances aside, I have absolutely no complaints about these. My only suggestion would be to offer a few different colours : )

    Thanks for making awesome products!

  5. Ari (verified owner)

    I can see personally how these work great after having them for a while. My only issue isn’t really functionality but size.

    Function wise they work great. For me its best to wear them with the EZP cup against my body directly while the shaft is situated between the fabric layers that make up the opening. When i wear it like this it stays in place for very easy STP use.

    These Briefs also work great as strictly packing underwear thanks to the curtain. Its essentially an easy seperate pouch to keep my packer off my skin. Thus i enjoy using my mr limpy with them when i only need a packer.

    Sadly i cant ‘interchange’ this use. To try and make sense i cant utilize the curtain to keep the EZP off my skin when not in use at the bathroom. Ive tried but it takes me way too much fumbling (ive dropped it a few times at home) to try and get the cup through the curtain and back out again when im done.

    To go back to my original statement i believe this is due to my size. Im a bit more heavy set in the thighs. Combine this with my knock knees and it makes opening my legs for STP adjustment very difficult. Thus its been downright impossible for me to use the EZP at a urinal since i need to pull my pants all the way down to adjust properly. So i turned to the budgies.

    This underwear works great in all aspects aside the fact the sizing is far too small for heavier set people. The largest size is still ten inches below whats correct for my waist.

    Thus if youre thicker like me i advise caution as these won’t be perfect and youll likely get very swampy. Besides the lack of larger sizes though (which i implore the designer to make in the near future) these underwear work better than i expected and i highly recommend them.

  6. David

    im on the heavy side and although i have no problem using my new EZP with no accidents, finding underwear to work properly is difficult. I was going to invest in like 5 budgie briefs to start off with but they dont offer any sizes for us bigger guys.Ive now ruined two packs of cotton briefs trying to get the hole in the fly just right so that it sits in my pants correctly. I need a 36-38 in USA sizes. I hope the maker of these underwear soon offer larger sizes. Please Please Please!!!!!

  7. Dani Folks (verified owner)

    Another great product from Transthetics. The fit is true to size and are extremely comfortable. I was happy they are mostly cotton because they don’t get sweaty and still have some stretch to them. They worked great with the joystick. For packing, I have only used rodeoh to compare but I definitely prefer the comfort of the budgies and how well they hold it in place. These briefs also look good and I got a great reaction from my partner!

  8. Ryan B. (verified owner)

    Context for this review: I’ve used the EZP for almost two years and have both the old and current versions of the briefs and boxer briefs. I’m very active and wear them to the gym, on hikes and backpacking trips, etc. I’m writing a similar review for the boxer briefs, but this one focuses on the briefs.

    First and foremost, I do like these. The fit is great, they’re comfy, and they look good. It’s incredibly easy to use the EZP while wearing these, and I think they perform better than the boxer briefs in this regard. They’re also a lot more durable than I expected. The first thing that started to fail was the elastic waistband; specifically, individual elastic strands started to fail at the point where the band is sewn to itself in the back. However, these briefs put up with about a year of hard wear and tear before that happened, and they’re still wearable even though they’re starting to look a bit shabby.

    There is one way in which the old design greatly outshines the current design, and that’s packer/EZP security. I have to wear compression shorts with the briefs when I hike or go to the gym because I began to have problems with the EZP “shuffling” its way out of the briefs pouch. Since this defeats the purpose of having them in the first place, I’ve found myself wearing my old briefs (which never had this problem due to redundancy in the pouch design) or my boxer briefs if I know my day will involve anything more vigorous than a brisk walk (which is often). I didn’t have this problem during the first six months or so that I had them, so I suspect this has something to do with loss of elasticity over time.

    In short, the current briefs design makes EZP use simple and convenient. They look great, too. However, due to the fact that my EZP keeps trying to escape my briefs, I actually prefer the boxer briefs and old briefs design even though they’re less convenient. I would’ve given these a five-star review based on my experience right after I got them, but the escaping EZP issue drops it down to three stars.

  9. Blaine Rizzo (verified owner)

    These are now my favorite pairs of underwear. I like the way they feel and look. They are highly comfortable and are great for packing. My only regret is not buying more of these. It would be fun if they came in different patterns and designs, if they did I’d immediately replace my entire underwear collection. I pack with the Joystick with these and they pack very well for me, which was surprising because I’m all of 5’3″ and weigh less than 140. It didn’t seem too obvious or uncomfortable and it stays securely within the Budgies. I feel very comfortable in these but would love to see new fabric patterns.

  10. jo sabra (verified owner)

    the stitching for the pocket came undone and now my prosthetic doesn’t stay in

  11. Reece Matera (verified owner)

    I’ve been using these underwear to hold my joystick in place. Works better than I ever would have expected it to. It’s able to hold my penis in place and keep it from slipping out. My dysphoria Is non-existent during sex because now I don’t have to wear something that looks like a harness. Tremendous work on the design!

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