You've seen them sandbag, spray beta, and downright criticize any climber that comes near "their" boulder, and even though they disregarded you as some old-timer who couldn't pull a door handle, you can still send their project in the Evolv Men's Slack Flip Flop. Instead of bruising their ego right off the bat, kick back on your crash pad and enjoy the cushy comfort the Slack brings your foot. Then, right before they're about to leave, climb the boulder, flip flops and all, before watching them leave with downtrodden heads.