The Green Grade was one of the first Thermalution thermal vests. This model has lived up to its success. The developments continue and now it is time for a new Green Grade Plus. In this plus version, the battery system is completely different. As standard, it is supplied with 1 battery 2.2 Ah type C. But this vest can be equipped with 2x a 2.2 battery type C, 1x a 4.4 Ah type E or 2x a 4.4 Ah battery type E. The operating time can be from 2 hours minimum to 8 hours maximum in this way. The heating element is the same as that of the Yellow Grade Plus and covers the largest upper part of the back. The Green Grade Plus is available from stock in sizes XS through XXL. The Green Grade is almost sold out. It may still be available from one of the Thermalution dealers.