When fishing, there’s always the risk of accidentally dropping your cell phone into the watery depths. You can easily avoid that, however, with the Koala super-grip phone harness and tether. Made of soft silicone, the harness wraps snugly around any smartphone, with or without its case. The sturdy tether, meanwhile, anchors to the likes of your clothing or tacklebag with a secure clasp, and stretches up to four feet. So smart.