You want instant heat for your hands and pockets? Try the Hand Warmers capable of keeping toasty hands anytime because it generates heat for approximately 30 minutes perfect if you are feeling cold during winter.
With Hand Warmers, simply flex the metal disc inside the hand warmer and allow its magic to start working plus it is completely reusable because after every use, you simply boil the warmer for 5 to 10 minutes to go back the hand warmer into its unique condition.
[£3.95 at gizoo]