Cake Bandit STP Boxer Briefs - 3" Inseam

by TG Supply


Cake Bandit STP Packing Trunks are made with super soft breathable cotton and a 3” Inseam. They can be worn with a foam insert (that can be cut to size), regular packer, or an STP -Stand T Pee Device without the need for a harness or packer strap.

Constructions Details: The STP underwear have a 3 layer construction the outside layer has buttons on the front to allow you to pull the STP through to pee,  the middle layer has an opening to pull the shaft through to the front and the inside layer (closest to your body) allows you to put the STP into the underwear and the shaft through to the second layer. The layer closest to your body has an opening to allow you to pull the cup of your STP to your body while keeping your underwear up. 

This STP Packing underwear was designed to work with the STP Freely, but may be compatible with other STP and packer models.  


92% Cotton 6% Spandex

Wash cold with like colors - will shrink a little in a hot or warm wash

No Bleach

Tumble Dry on Medium Low - will shrink a little in the dryer


Small: 27"- 31”
Medium: 32”- 35”
Large: 36” - 38”
XL: 39” - 42”
2XL: 43”- 46"
3XL: 47"- 52”



Customer Reviews

Based on 11 reviews
Tobias Wheeler
Comfortable and functional

I got my first ever packer and bought these to wear with it! Works great together

Toni Newman

The legs kept rolling and riding up my thighs. Also the holes in the underwear don't keep the packer secured to keep it from moving around. I constantly have to adjust it. Not a great experience for my first pair of packing briefs

Excellent boxers

I use these with the Freely from this site and it’s absolutely excellent. There is a small risk of shifting when you’re doing a lot of up-and-down and lifting and such things, but it’s only happened twice in a couple weeks now of wearing these guys. Overall, excellent!!

Sophia Hull
Great Packing underwear

Great fit and hold all packers in place all day!

Vin Macleod
Smokie & My Bandits

These gems have been a game changer!! For me now I know how the lady’s felt back in the day with wait till we get our Hanes on you .. These babies are fantastic I can’t really say they need to much tweaking possibly if anything wick material would be helpful I love how they hold my junk easy to position and move quickly if need be. More colors would be cool and keep that stitching 🧵 on point nice and tight I’ll definitely be purchasing more. Thanks guys really these things keep getting better thanks you all your hard work and dedication,


Transguy Supply is a small 2 person team. You can generally expect your order to ship within 7-10 days of purchase.

Final Sales

Please note that due to the sensitive nature of the items in question, all STP, Packer, Harness, and Underwear sales are final. Please make sure you have double-checked product size guides and have selected the correct item.

International Orders

Please note that for all non-US orders, you may be charged local taxes in order to retrieve your order. See our Shipping Policies for more details.