What Is a Packer? (FTM Packing Guide)
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Give me the short version
A packer is something you wear in your underwear to create the look and shape of a bulge. It can be as simple as a rolled-up sock, a soft prosthetic, or a device that also lets you pee standing up. People pack to ease dysphoria, to feel more like themselves, or just for an ordinary day out. Plenty of trans and non-binary people don't pack at all, and that's fine too. There's no right way and no checklist. If you want the full picture, read on.
Maybe you heard the word "packer" and looked it up quietly later.
Maybe a friend said it and you nodded along, not quite sure what they meant.
Either way, you landed here, and that's a good place to begin.
I'm Robyn Electra, and through my work with trans and non-binary people I've talked to a lot of folks who were figuring packing out for the first time. This guide covers what a packer is, why people pack, the types you'll come across and how to find what works for you.
At Bond and Binder we make gear that helps with packing, and the questions below are the ones people ask me most.
So, what actually is a packer?
A packer is anything you wear in your underwear to create the shape of a bulge.
That's it. The word covers a lot of ground.
To pack means to wear one. A packer is the thing itself.
For some people that's a rolled-up sock. For others it's a soft prosthetic shaped like a flaccid penis, sometimes detailed, sometimes plain. Some packers do more than sit there. Certain ones let you pee standing up, and others are firm enough to use during sex.
So when someone says packer, they could mean any of these. The right one depends on what you want it to do.
Why do people pack?
For a lot of people it eases dysphoria. The flat front in the mirror, the sense of something missing, packing can quiet that.
For others it's the opposite of relief. It's euphoria. Seeing the bulge sit right, feeling the weight against your body, knowing your shape matches how you feel inside.
Some pack so they read as male at a glance and don't have to think about it. Some do it for the swimming pool or a night out. Some just feel more themselves with it there.
Packing isn't only for adults, and it isn't sexual by default. For most people, most of the time, it's about comfort and nothing more.
Who packs?
Mostly trans men and transmasculine people. Plenty of non-binary people pack too, every day or now and then or only in private. Anyone who wants the shape can.
Here's the part I want you to hear, though. Packing is not a checklist item. It is not something you have to do to be a real man or a valid trans person.
Lots of people pack sometimes. Lots never do. Some stop once they're being read correctly without it. None of that makes anyone more or less themselves. You do what feels right for you, and you change your mind whenever you like.
The main types of packers
A sock packer is exactly what it sounds like. Roll one up, shape it, tuck it in. It costs nothing, and it's how a lot of people start. Our guide to the sock packer covers that first step in full.
A soft packer is a prosthetic shaped to look like a flaccid penis. Soft, squishy, made for the look and feel rather than any function. This is the everyday choice for most people who pack.
An STP packer lets you stand to pee. There's a funnel inside that directs the flow. They take some practice, but for a lot of people they're worth it.
A pack-and-play, sometimes sold as a 3-in-1, does more again. Firm enough to use during sex as well as packing and peeing. These tend to be bigger, so they suit some bodies and some clothes better than others.
A bulge pad is the simplest prosthetic option. A soft pad that sits in your underwear and gives you a natural shape, nothing more complicated than that.
How does a packer stay in place?
This is the bit people worry about, and the answer is simpler than you'd think.
Snug underwear does most of the work. Briefs or boxer briefs that sit close to the body will hold a packer without much fuss. A sock stays put if your underwear is fitted enough.
Packing underwear with a built-in pouch holds it more securely and stops it shifting when you move. That extra hold matters more if you're bigger, or if you'd rather the prosthetic didn't touch your skin directly. Our own packing underwear uses a three-layer pouch made for exactly this.
Some people use a harness, or an adhesive that sticks the packer to the body. Worth knowing about, though most people get on fine with good underwear. For the full rundown on placement and keeping it put, see our guide to how to wear a packer.
Can you pack while swimming or sleeping?
Sleeping, yes. A soft packer is fine to sleep in if it's comfortable. Plenty of people keep one in overnight because being without it feels off. Skip the firmer pack-and-play types for bed. They're not made for it.
Swimming is doable too, as long as the packer is secure and water-friendly and your swimwear holds it. A loose fit and a wave will part you from it fast. If swimming is the main thing you want it for, make sure both the packer and what holds it are up to the job.
What we make at Bond and Binder
I'll be straight with you. We don't make a silicone packer or an STP device. There are good ones out there, and this guide should help you spot them.
What we make is the accessible end of packing. Our bulge pad is a soft, lightweight pad that gives you a natural shape. It's the cheapest thing we make, at £9.99, and a gentle way to try packing without committing to a full prosthetic. Our FTM packing underwear then holds a packer or a pad steady through the day, with a three-layer pouch and soft bamboo fabric that doesn't dig in. If you're choosing a pair, our buyer's guide to packing boxers runs through the styles and what to look for.
We price it to be reachable. Feeling like yourself shouldn't be a thing you have to save up for.

Where to start with packing
If you're new to all this, start cheap and low-stakes. A rolled-up sock or a bulge pad, in underwear that holds it. Try packing before you spend on anything fancier. There's no wrong first step, and no clock on working it out.
When you want kit built for the job, our packing underwear is made to hold a packer comfortably all day, in sizes and a fabric chosen for real bodies.
Browse the full range, or check our FAQs if you're not sure what suits you. If you'd rather just ask, get in touch.
And if cost is the thing in your way, that's what Trans Celebration is for. Our charity partner gives free gear to people who need a little extra help, so money is never the reason someone goes without something that helps them feel like themselves.
About Robyn
Robyn Electra is a trans woman, entrepreneur, and LGBTQ+ activist. She is the founder of Bond and Binder, a gender-affirming clothing brand committed to making chest binders and packing underwear accessible to trans and non-binary people. She is also the co-founder of Trans Celebration, a UK-based grassroots charity, and the founder of Gaff and Go, the UK's first transgender lingerie brand.