Journal
The UNIHAND journal: warm hands, longer charges
Long reads on choosing a hand warmer, getting the most from a charge and keeping your hands warm outdoors. The UNIHAND studio writes each one from the figures printed for the pair and from sources it has read.
Choosing
Rechargeable vs disposable hand warmers: heat, hours and what a winter of use adds up to
Air-activated packs, lighter-fluid warmers and rechargeable pairs make heat three different ways. What each runs at, how long, and what is left over after a season.
Read the guide
Battery
How to get 20 hours from a rechargeable hand warmer: heat levels, cold air and battery care
Low, Medium and High as fractions of one charge, why a cold battery gives less, and the charging and storage habits that keep a lithium cell healthy for years.
Read the guide
Outdoors
Keeping your hands warm outdoors: golf, hunting, ski days and stadium seats
Why fingers go cold first, what wind does to a 30-degree morning, and where a pocket warmer earns its place on the course, in the stand and on the lift.
Read the guide