Cake Bandit STP Boxer Briefs - 3" Inseam

by TG Supply


FTM STP Boxers for a Harness-Free Stand-to-Pee Experience.



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), a regular packer, or a stand-to-pee device without the need for a harness or packer strap.

Constructions Details: Our STP underwear has 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 finally, the inside layer (the one closest to your body) allows you to put the STP into the underwear and the shaft through to the second layer.  

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


  • 92% Cotton 8% 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 10 reviews
Kyle York
super nice

these boxers are super comfortable and fit really nice. the waist band it sturdy and really nice. Overall they feel really good and look really good

Tobias Wheeler
Comfortable and functional

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

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!

Myles Jean-Gilles

Cake Bandit STP Boxer Briefs - 3" Inseam


You can expect your order to ship within 2-3 business days after purchase. Print to order items, such as t-shirts, will sometimes take longer and will ship separately.

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.