Whether you're on a backpacking adventure or don't want to carry a bunch of loose stuff with you on the boat, the SPIbelt is a small, lightweight way to store small items. Some units are designed to wrap around your arm, while others wrap around your waist. These carriers hold phones, keys, IDs, and more, and have a second inner pocket for extra storage. A waterproof SPIbelt is also available. $12-$30.
Brunton Atmospheric Data Center
Brunton's ADC Pro is a waterproof, lightweight (2.4-ounce), compact handheld weather station. With it, you'll know weather trends up to 12 hours in advance. It gauges current temperature, wind speed, wind chill, barometric pressure, humidity, altitude, and time of day. Its waterproof body also means the wind speed feature can also be used to measure water speed. MSRP is $204.
Sheffield Angler 17-in-1 Multi-Tool
Designed with fishermen in mind, Sheffield's Angler 17-in-1 multi-tool features fish-specific tools such as a hook sharpener, fish scaler, three line splicers, and a fillet blade, plus needlenose pliers, slotted screwdrivers, Phillips screwdriver, scissors, and wire cutters. It has stainless-steel locking attachments and weighs 9 ounces. $20 to $29.