Here are some that I made for my BPL Firelite Pots. From the left: SUL1100, SUL900, SUL550. If you decide to do this project I would suggest making the Cozy lids long enough to completely cover the sides of the pot. I've noticed a fair amount of warmth coming through the cozy while I'm eating. If the cozy walls are double thickness, due to the top skirt being full length, it will provide a significant increase in heat retention with an insignificant weight gain. Use Reflectix Tape to do the seams.
Manny, SUL1100, Moe, SUL900 & Jack, SUL550
Manny, Moe & Jack, with their Refectiz cozies
This is an easy project and only requires Refletix, Reflectix tape & Scissors. Total time for all three was about a half hour.