Our hard working Double Knee Pants… crafted from 9oz Japanese chambray. For those unacquainted, chambray is a classic fabric that’s been used to make tough workwear for well over a century. To put things into context, when the working classes of America were described as ‘blue collar’, it’s because of their chambray shirts. Kind of like denim’s lightweight cousin—it’s perfect for summer work pants like these, especially when combined with that contrast white stitching.