Pants with knee pad slots are life changing for me. Never going back!!! : r/Tools
Carhartt - Every pair of our double-front work pants is built to deliver hardworking mobility, knee-pad compatibility, and legendary durability. In other words, everything you need to get the job done.
Amazon.com: Caterpillar Men's H2O Defender Pant (Regular and Big & Tall Sizes), Black/Graphite, 28W x 30L: Clothing, Shoes & Jewelry
Amazon.com: Caterpillar Advanced Stretch Trademark Work Pants for Men with Articulated Knees, Side Cargo Pocket, and Dual Tool Pockets, Black - 36W X 34L : Tools & Home Improvement
Caterpillar | Pants | Cat Caterpillar Mens 3x30 H2o Defender Water Resistant Work Pants Wknee Pads | Poshmark
Men's Trademark Work Pants | CAT® WORKWEAR | Work pants, Shirt tucked in, Black pants
Mens Utility Cargo Work Pants Heavy Duty Combat Working Trousers Knee Pad Pocket | eBay