Build quality 'feels' cheap, but product is effective. Even without heating on the isolation is good. Be aware heating area is only about 25x25cm at your back, just below shoulder area. No front or lower back heating. Powerbank fits in left inside pocket. Size 4XL (largest) corresponds to about XL or XXL in common EU size standard.

Build quality 'feels' cheap, but product is effective. Even without heating on the isolation is good. Be aware heating area is only about 25x25cm at your back, just below shoulder area. No front or lower back heating. Powerbank fits in left inside pocket. Size 4XL (largest) corresponds to about XL or XXL in common EU size standard.

Build quality 'feels' cheap, but product is effective. Even without heating on the isolation is good. Be aware heating area is only about 25x25cm at your back, just below shoulder area. No front or lower back heating. Powerbank fits in left inside pocket. Size 4XL (largest) corresponds to about XL or XXL in common EU size standard.

works nicely. better than expected

works nicely. better than expected

works nicely. better than expected