OshKosh B'gosh Carpenter Jeans Boys' 18 Months Blue Denim Classic Workwear. These OshKosh B'gosh carpenter jeans for boys come in a size 18 months and feature a classic medium wash blue denim. Made from 100% cotton, these durable pants include signature carpenter styling with a side utility pocket, hammer loop, and an elasticized back waistband for a comfortable fit. The design is finished with heavy whiskering at the lap and contrast stitching. These jeans are in good used condition with visible fading and minor staining on the knees from play, consistent with normal wear.