The Harper's Handwarmers
The Harper’s Handwarmers was originally designed for winter indoors use but will be very handy now that the winter mittens will have to come off. They are knitted in Garnstudio’s Alpaca, a fine 100 % alpaca yarn, and are thin enough to be used even for chilly summer nights or a little too cold wedding day for a spring bride.
The hand warmers are available for free but only fully written out in one size and with written instructions only. Instructions are given to count out two more sizes. It should be easy enough to follow but if you want to be on the safe side you can buy a pdf-file for $2 that has a chart as well as full written instructions for both hands in three sizes.