AXOLOM STP Trunk 1.8" O ring is a soft Breathable Cotton STP Packing underwear. The packing underwear features an anti-roll middle “O Layer”. The button fly underwear is made for packing an STP Packer (It is perfect for Stand to Pee Prosthetics). It enables a user to have a 3-in-1 option. Now STP Packer can be used without a harness. Synonyms: STP Trunks Button-Fly Underwear, STP Brief, FTM STP Packing Trunks, FTM Harness.

Axolom STP Trunk 1.8" O ring is packing underwear for STP Packers. You can pack any of the Stand to Pee prosthetics. It can't be packed with FTM Soft Packers because FTM packers are soft and not eligible for this packing with STP Trunk. It looks naturally well and it is very comfortable. The Axolom STP Trunk is similar to our Axolom STP Trunk. The design is the same but the color is different.
Introduction: Packing underwear is an essential part of trans men's life. The Axolom Packing Jockstrap underwear has an "O ring band" inside for holding a packer gear and also has a little pouch for holding a FTM Packing Gear.
In the beginning, we build various soft FTM packers and some Stand to pee prosthetics. Then we thought to make some essential products such as STP underwear, and FTM packing underwear.
Size Chart:
XS (27"-29")
S (30” - 32”),
M (33” - 35”),
L (36” - 38”),
XL (39” - 41”),
1XL (42” - 45”),
2XL (46” - 48”),
3XL (49” - 51”)

Material: 95% Cotton, 5% Spandex.
Wide comfortable waistband, with the underwear itself made from high-quality fabric to last wash after wash
-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.)
* 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.
The boxers themselves are quite comfortable, and my STP feels very secure in them. I did have a lot of trouble getting my STP placed correctly, as the natural positioning is too high and it leaked a lot! I found some smaller sized cis boxers worked, but I did eventually get it to work with these ones too. I ordered an XS, since I have very small hips, so maybe a size up might work better?
Had to go up to an XL from a L. As you get older, things are not quite as slim as when young. XL fits great and functions great. Thanks for the product.
AXOLOM STP Trunk 1.8" O Ring
AXOLOM STP Trunk 1.8" O Ring
Does the job best packing boxers I have ever bought
I love this! I get so much gender euphoria from it, it feels very realistic, and is so much more affordable compared to similar products elsewhere.
Absolutely super comfy they fit really well with thinker and holds everything in place 👍🙂
Pretty good - BUT ! Do not get the foreskin, it is super delicate and broke within 3 days of use.
Hi there,
Thank you for sharing your experience. We're sorry to hear that the movable foreskin didn't hold up as you expected.
The movable foreskin is intentionally made with a very thin and flexible layer of silicone to create a more realistic look and feel. Because of this design, it is naturally more delicate than the rest of the product. Its lifespan can vary depending on factors such as how it's used, the amount of friction, lubrication, and general handling.
We truly appreciate your feedback, as it helps us continue improving our designs.
All the best!
As an STP, this thing worked PERFECT. Zero notes. Trying to pack was a bit harder since I have a small frame and the Axolom harness squished the cup for me. With a bit of finaggling it works just fine, but it can be a bit of an ordeal if you're a first timer like me. Still totally worth the money, especially compared to how expensive other 3n1s on the market are.
This is my first packer, I’m 5’5 130lbs and it’s sized perfectly. bulge isn’t too big, not too heavy in underwear. feels really good :)