All Products


DON’T BE SCARED!!! Warn everyone that you are caffeinated and on a mission to have an incredible workout or whatever you have planned for the day!! This Killer “Warning Caffeinated” tee will surely going to make you stand out in a crowd!  Made from poly-cotton blend this tee is stylish yet very comfortable. It features screen printed graphics on the front and back. Super lightweight construction and tag less for ultimate comfort. This tee comes in sizes Small, Medium, Large, Extra Large, Double Extra Large, and Triple Extra Large.


DON’T BE SCARED!!! Warn everyone that you are caffeinated and on a mission to have an incredible workout or whatever you have planned for the day!! This Killer “Warning Caffeinated” tee will surely going to make you stand out in a crowd!  Made from 100% ring spun cotton this tee is stylish yet very comfortable. It features screen printed graphics on the front and back. Super lightweight construction and tag less for ultimate comfort. This tee comes in sizes Small, Medium, Large, Extra Large, Double Extra Large, and Triple Extra Large.


Warn everyone that you are caffeinated and on a mission!! This Killer “Warning Caffeinated” tank is going to make you stand out in a crowd!  Made from 100% cotton it is stylish yet very comfortable. Features our Warning Label screen printed graphics on the front and back. Super lightweight construction and tag less for ultimate comfort. It is available in sizes Small, Medium, Large, Extra Large, and 2XL.


Sinister Labs Tee features Benny the skull on a large front print and a small Sinister Labs beaker on the back. Made from a poly-cotton blend, it is perfect for any occasion. Available in size S-XXL.

65% Poly
35% combed and ring-spun cotton
40 Single 120g/3.5oz


The new Sinister Labs Tee is light and comfortable. Made from a cotton blend this t-shirt will keep you in style. It features a small Sinister Labs Beaker screen printed on the back, with a large Sinister Labs Skull screen printed on the front. Available in sizes Small-3XLarge 


Fitted Pullover - Consider ordering a size up

This classic Skull design is perfect for any Sinister occasion and of course helps you stay nice and warm.. Made from top quality material this hoodie is breathable and super soft. Available in sizes Medium, Large, Extra Large, 2XL,  and 3XL.


Warn everyone that you are on a mission!! This killer tee is going to make you stand out in a crowd!  Made from a poly-cotton blend this tee is stylish yet very comfortable. It features screen printed graphics on the front and back. Super lightweight construction and tag less for ultimate comfort.