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The Original Pre-Mixed Synthetic Urine! • Totally Undetectable! • Has Never Failed A Test!

Stash Undies


Select a Waist Size:

Medium (32" - 34")

Large (36" - 38")

XL (40" - 42")

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Stash It with the Stash Undie and be Safe and Secure.

The Stash Undies gives you a hidden stash pocket for your belongings in a dedicated front pocket which works perfect for a Quick Fix Synthetic urine bottle. This underwear gives you quick and easy access to what your hiding without any hassles of zippers or buttons. You can just reach in and pull out what you need. There is room for more, but we wouldn’t want to bulk up with more than that down the pants.

If someone were to see you in your Stash Undie they will not be able see the pocket. They would see a normal pair of underwear. No brand name is marked on the Stash Undie to give them away as a pair of pocket underwear.

For best results put your stashed item deep into the Stash Undie pocket.

These good-looking undies are pickpocket proof underwear. With an easy access pocket, they’re also pretty convenient, though in some situations a little privacy might be in order before deep digging.

Perfect for if you’re traveling in different countries to hide your valuables or if at a music festival, sporting events, or any other crowded event and need to stash your phone and cash. These Stash Undie is designed just like normal underwear and they’re  very comfortable.

Wash your Stash Undie the exact same way you have been washing your underwear for years. White: Machine Wash Warm;  Color: Machine Wash Cold;  Use only non-chlorine bleach when needed;  Hang to dry unless your in a hurry and then tumble dry low. No fabric softener.  Do Not Iron


Quick Fix Urine Not Included with purchase of Stash Undies

The Stash Undies is not associated with Spectrum Labs.

Stash Undies

Purchase Quick Fix

Quick Fix Synthetic Urine Quick Fix Synthetic 2oz

Newest 6.3 Formula Pre-mixed with Urea & Uric Acid

quick fix synthetic urine plus 6.2 bottle plus Quick Fix Synthetic Plus 3oz

Newest 6.3 Formula Pre-mixed with Urea & Uric Acid

Quick Fix Synthetic Urine Value Pack Quick Fix Synthetic 2oz Value Pack

Buy 3 get 1 free!

quick_fix_synthetic_urine_value_pack_6.3 Quick Fix Synthetic Plus 3oz Value Pack

Buy 3 get 1 free!

Quick Fix Synthetic Urine Belt Synthetic Urine Belt

Quick Fix Urine Not Included 

Stash Strap The Stash Leg Strap

Conceal Your Quick Fix Urine!