This Moisture Wicking Thermo-Cool Cooling Vest with rechargeable battery is almost 80% off because it’s supposed to have an APP (doesn’t).  We’re getting to the warmest part of the year, so if you spend any time working outside, smart way to stay cool (unless you’re in AZ or Vegas & then nothing will help).  Battery pack is removable and can be used to charge items like your phone.  $2.99 shipping, but order 2 or more and shipping is free.