Workman Wind Core Ice x Heater Peltier Vest Pro 2024 for sale. I bought this this year, but I'm putting it up for sale. There are two reasons. First, the chest size is too tight. I've been working out quite a bit, so my chest is pretty big. I bought it at the store, but I couldn't try it on, so after I got home and tried it on, the chest area was very tight, and I thought, "This won't work," and gave up on using it. Second, there's a mold on the vest side where you insert the ice and heater buttons, but the buttons don't snap into this mold. You can just see the diamond-shaped buttons aligned with the mold, meaning the buttons shift out of place. I don't understand why it's designed this way, and it made me lose the desire to use it. However, the performance of the ice and heater was excellent, which is a real shame. I still think about how comfortable it would have been to wear this Peltier vest while setting up a tent on a scorching summer day. This item comes with the box, but I've already thrown away the outer paper with the product photos, etc. There's also the instruction manual, but no warranty card. I probably threw it away. The product itself has only been activated once at home to try it on and check the ice and heater functions. I haven't used it since, but it has been opened, so please consider purchasing only if you understand this. I won't list the detailed specifications. Please look them up online. Thank you.