Next week Ralph Lauren—the brand that once staged a 4D fashion show on Madison Avenue—will unveil its latest high-tech endeavor: A T-shirt that knows how hard you’re working out and tells you when to breathe. Cue involuntary fear shiver.

The brand worked in conjunction with wearable tech company OMsignal to develop the smartshirt, which measures your heart rate, calories burned and steps taken and then displays the data on your iPhone using a proprietary app. Ralph Lauren created a video to showcase the technology, and it will send you into a physical fitness shame spiral so deep, you may never leave the gym again. Watch:

The Ralph Lauren PoloTech smartshirt comes in black and features the brand’s extra-large polo logo on the chest. You can preorder it now on ralphlauren.com for $295—just in time for the U.S. Open and your new life as a personal trainer.

This post was modified from its original version on 8/24/2015.

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