11B Proof

11B Proof is for the grunts, the 11-Bravos, and anyone who's ever had to explain something to the infantry using small words and fewer moving parts.

If it's 11B Proof, it means it's so simple, so durable, so foolproof that even an 11B couldn't find a way to break it, lose it, or turn it into an incident report. It's barracks shorthand for "idiot-proof" - a badge of honor and a jab all rolled into one. Wear it and you're in on the joke, whether you're the punchline or the one delivering it.

Whether you're wearing it for a drill weekend, a unit reunion, a backyard BBQ with the guys who get it, or just to rib a buddy who somehow still manages to mess up the simplest tasks, this shirt says it all without saying a word.

Keep an eye out for the hidden hare worked into the design - every Hidden Hare shirt has one hiding in plain sight, 11B Proof or not.

There’s a hare hidden in this drawing, drawn into the linework, never stuck on top. It disappears at a glance and shows up when you look closer.

Tip: open the close-up photo and zoom in.

Unisex fit. 100% combed ring-spun cotton, 4.3 oz. Set-in 1x1 rib collar, hemmed sleeves, side seams, tear-away label.

Wash cold on a gentle cycle, dry low or hang dry, skip the bleach. Treat it better than your last duty shirt.

Every shirt ships in 7–10 business days, then the carrier takes it from there. We ship to US and APO/FPO addresses, and shipping is shown at checkout.

Unworn shirts can be returned within 30 days of delivery. Message us with your order number and we’ll walk you through it.

Shipping policy · Refund policy