Meet The FNCTN Tee.
The Evolution of the Signature Tee: Everything you loved about the original - Now even better.
MEN'S FNCTN TEE WOMEN'S FNCTN TEEPhone, keys, gels: secured in the sleeve. No belts. No armbands. No bounce.
Performance without the bulk. Convenience without compromise.
Bounce-proof pocket design keeps items secure
Treated pocket lining helps protect phone, keys, gels from sweat & rain
No bands, no belts, no vests — just a smarter tee
Premium moisture wicking fabric
Proven worldwide: 45 states. 15 countries.
Real Reviews from Real Customers of the OG Signature Tee

“I didn’t know how this shirt would fit & feel, but as soon as I went on that first run, the shirt just made sense. The cuff has just enough compression to stop any movement of my phone and keys. I ended up buying the other two colors, highly recommend!”
Mike P. · New Jersey, USA
✓ Verified Customer

“I have always used the armbands for my 5-10k runs, but then I saw this shirt and liked the idea of not having that attachment on me. The shirt is moisture wicking too which is great for the summer.”
Nick J. · Georgia, USA
✓ Verified Customer

“Wore it through training, and now the race! I cannot recommend this shirt more highly. Performed as promised, super easy for fueling gel accessibility!”
Bayvcf
✓ Verified Customer

“Made running in the Vegas Marathon easy with not having to hold stuff in my pockets or hands.”
Jthardwick
✓ Verified Customer

“You have to get one of these! My order showed up the day before my 5K run. Perfect timing. I ran with this shirt the next day and I am beyond excited for these! This shirt did everything as advertised and I will be buying more.”
Clint H.
✓ Verified Customer
Runners around the world are ditching bounce and bulk.