I have been using two UL backpacking items for many years.
1. Princeton Tech Scout headlamp -> 1.7 oz. W/4CR2032 lithium batteries (12 years old)
2. SILVA Huntsman mini protractor compass -> 0.6 oz W/10″ cord lanyard. (27 years old)
Both are “treasures” for their lighter weight and usefulness and both are long out of production. :o(
Perhaps the most treasured is the Huntsman compass. For its weight and size it is very accurate and easy to use with its rotating bezel. Ya just gotta remember the current  declination of yer area or have it on yer map as it can’t be preset as in the larger protractor compasses like the SILVA Ranger.






