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.
Doesn’t hold heavy packers well. I have the Atlas pack n play and I was recommended this as it holds for play. I sized down and it fits will but not enough to keep it against my body. Holds the packer in place at least so that’s always good. Wouldn’t recommend this for heavy packers or play. Could be compatible with lighter packers however I don’t own one so I’m unsure.
Hi there,
Thank you for your feedback.
Our Flexit harness is primarily designed for intimacy use, and it is not intended for daily packing with heavier Pack N Play-style packers. It is best suited for lighter or standard packers used in intimate settings.
We appreciate your understanding regarding this design purpose. If you have any further questions or encounter any issues, please feel free to contact us via email at any time, and we will be happy to assist you with after-sales support.
All the best!
I have 2 in M (black and green) and one in S (black). If you like it a little Baggy choose your normal size, If you want it like a tighter boxershorts choose the smaller size. Fits perfect with STP Thinker
I had a hard stp and it worked but looked like I had a boner all the time. This soft one blew my mind, it is a little bit difficult to pee at the beginning and standing needs a bit of training, but now it feels great.
You're not going to find a more realistic packer for the price. The shaft swings like the real thing, and the movable testes are a bigger, more lifelike size than most other packers' (and fun to squish). Little details like the skin folds near the glans (on the cut version) and the texture of the scrotum add to the realism. It's also not too sticky like some packers are. It's the best packer I've ever owned, and the price can't be beat.