When you're standing in front of an open hatchway looking down at the ground very, very far below you, here's a word of advice: Keep Calm and Dive On. Freaking out isn't going to help, and if your worst fears should come to pass, you may as well go out looking cool and collected.

• Designed and printed with pride in Ann Arbor, Michigan
• Professionally printed with commercial inks
• Men's, Women's, and Youth version available for most products
• If on fence about sizing, go up a size