I’ve been on the lookout for cool stocking stuffers for Christmas and stumbled on what could be the coolest geek shirt on the planet.

The WiFi Detector Shirt from Thinkgeek.com is not just eye-catching, it’s functional, too! The decal on the front of the shirt is a functioning WiFi detector. It can detect 802.11b or 802.11gsignals. The bars radiating from the center actually change to indicate the signal strength that it detects from the surrounding area. Who needs a WiFi detector keychain when you have this shirt? Heck, you won’t even need to open your laptop to check for signals. Just look at the front of your shirt and you’ll know if there’s WiFi available. Your friends will also know if there’s a signal because the glow is very visible.

Don’t worry about washing the shirt, the decal is actually detachable so you can wash your shirt anytime.