Reef Flip Flops. First pair going on year 7. Friend has pair on year 8. Dad's pair is on year ~12-13. : r/BuyItForLife
Flask Sandals by Reef... Flip Flops With A Built-In Flask! | Feet and Shoes Guide
REEF Cushion Bloom Hi Womens Sandals - NATURAL | Tillys
A Flask, in a Sandal. Seriously. - Brooklyn Magazine
Amazon.com | Scott Hawaii Men's Makaha Rubber Slipper with Nylon Strap | Beach Footwear | No-Slip Boat Sandal | All Day Arch Support Comfortable Flip Flops | Sandals
Terrorists Could Fill Flask Sandals with Bombs not Booze, Cops and ABC News Warn | WIRED