Axolom STP Boxer is a soft Breathable Cotton STP Packing underwear for FTM Trans Guys, Non-Binary, and others. It is a non-functional FTM Packing boxer. It means the boxers keep the dick in one place. It's not movable underwear. The packing underwear features an anti-roll middle “O Layer”. The button fly is made for packing an STP Packer (It can be a soft packer or Stand to Pee Prosthetics). Now STP Packer can be used without a harness. Synonyms: STP Button-Fly Underwear, STP Brief, FTM STP Packing Boxer.
The Axolom STP Boxer is very comfortable with Axolom Uncircumcised or Circumcised Thinker STP Packer. It is also designed for Axolom Handy, Axolom Astro, and other STP Prosthetics.
A Preview of Axolom STP Boxer:
Introduction:
The Axolom STP Boxer underwear has two layers. The outside layer shows two buttons that allow a person to STP (Stand to pee) in front of public toilets or private spaces through the FTM STP Packer. The inside layer(O Layer) keeps your STP attached to your body. It also has a layer of keeping the scrotum.

The STP Packing Underwear works for specially Thinker, Handy. It also works for other STP packers as well. Some STP packers may not suitable for it.
More Information: AXOLOM STP boxer work with most of our Stand To Pee Prosthetics, which have a shaft diameter of less than 1.5". ( DOES NOT fit the Homerun, Hoodie).
Size Chart:
XS (27"-29")
S (30” - 32”),
M (33” - 35”),
L (36” - 38”),
XL (39” - 41”),
1XL (42” - 45”),
2XL (46” - 49”),
3XL (52” - 55”)

Material: 95% Cotton, 5% Spandex.
- Button fly opening to easily access the shaft
- Soft fabric-covered O ring to keep the shaft of your packer/STP in the natural hang position.
- Interior elastic loop harness, hold your STP secure and in a natural position. ( Can be cut off if you think it's unnecessary.)
- Wide comfortable waistband, with the underwear itself made from high-quality fabric to last wash after wash.
Color: Black, Navy Blue
Wash Cold, Tumble Dry or Medium Low.
* 100% discreet shipping.
* Orders would be shipped out within 2 working days.
* Order can be canceled or changed before shipping. Please contact service team if you want to make any changes. ( Email: info@axolom.com)
* General shipping time:
-- United States, United Kingdom, Germany, France, Italy: 12-18 days.
-- Other countries and regions: 15-20 days.
* You will receive an email with tracking information when your order shipped out. Tracking info will update in 7-10 days when it arrive the destination country.
PLEASE WATCH AXOLOM PRODUCTS REVIEW VIDEOS ON YOUTUBE BEFORE YOUR PURCHASE! WE REPLACE MANUFACTURING DEFECTIVE ITEMS, BUT NO RETURNS OR REFUND ON WRONG DESIGNS.
Overall, I am a huge fan of axolom packers and this is my 5th product from them (so I might be a little pickier)! This packer is great for a lot of reasons. The texture is incredibly soft and natural, the price point (for being all silicone) is unbeatable, and the size is a nice sweet spot of being extremely comfortable packing while still giving something to see/grab. And SO realistic! But that said, for me, as someone who really relies on the *feeling* of how a packer attaches to me, something just doesn't click with this one. The balls are so big they don't feel connected to my body, and there is almost a whole inch of silicone between my skin and the start of the shaft. I use the gendercat adhesive on all my packers, and when this one is on, it just doesn't move like it's mine or coming "from me" if that makes sense? Maybe the Argos could be a better choice for folks who just wear it in packing boxers (or who don't care as much about the movement of it all!) but I can't say I'm not disappointed. Will be ordering from axolom again bc I really trust their products, but for now, this one's staying on the shelf :')
this is probably my 3rd stp i've ever owned, but its also my favorite. Super easy to use, packs nicely, isn't too big, the coloring on it is super awesome and realistic, and overall is just a great prosthetic.
its my first STP, so it took a bit to get used to using. I like that it has a big reservoir though, so it was a bit easier to get the hang of than I thought it would be. I like how the color matches my skin really well. It's very soft, but it doesn't pack well for me unfortunately. I'm a short guy (5'), and this overall is just way too big for me to pack with. It looks like I have a big ole boner in my pants, lol.
I got this because I wanted something a little smaller for day to day use.
This has not disappointed. It's remarkably comfortable and stays in place, whether that's in a harness, tucked into the fly if boxers, in a pouch or placed in the underwear.
I like that it's actually an average size for a soft penis. This means that I'm not walking around with an unrealistic bulge, and that my groin isn't the first thing people notice about me. It just quietly exists and is very affirming.
The colour is great and stays out despite numerous washes. It looks very realistic too.
I honestly have absolutely nothing negative to say about this.
It is extremely easy to pee through, with zero leaks and easy to keep clean and fresh.
Because it's shorter (which is more realistic when using as a packer), you have to stand a little closer to the toilet but it's just so much easier to use than larger ones.
It looks great in trousers (it kind of has to be packed up due to the shape of it), but this produces a subtle to normal bulge.
It's my go to STP because of the ease of use and lack of accidental leaking. It works very well for my anatomy, which I would say is a bit further forward pee wise.
I use a harness to keep it in place ready to just whip out and relieve myself in the bathroom, so there's no fumbling about getting it in the right position. This works very well for me when in a rush or busy.
The colour of the C3 is a little yellower than other prosthetics in C3, but it actually matches my skin tone far better in my genital area. I really like the detail on this STP, and when I have it on in the harness and look in the mirror, it looks like a real penis which is fantastic and gives me gender euphoria.
My partner also likes this and complements me on my d**k haha! I love it.
Thanks so much, Axolom. I'm so happy with this.