Faulty stitching

Bought these bibs for my husband based on Carhartt's reputation and ended up being extremely disappointed. Received the item in early December and by mid-March there was a complete tear in the waist-line stitching from the zip-fly to the right hand pocket. While I'm sure the added ventilation will be nice come summer time it does not fall in line with Carhartt's slogan "Tough like the men who wear them".Very disappointing.