Ladies hard wearing work trousers?

[DobbyIsAFreeElf]

I work with children and spend a lot of time kneeling/crawling around on floors and I can't seem to find any trousers that last. They all go at the knees. I have gone through 5 pairs of trousers in 1 year, including a pair of black jeans which now have white knees.

Does any where know where I can buy trousers that won't have fraying knees within six weeks? They preferably need to be black work style, but may get away with a smart Jean/chino.

What do other staff members wear? I wonder about either outdoor trousers or workwear/uniform trousers? Probably need to be polyester to be hardwearing enough.

[[http://www.craghoppers.com/kiwi-pro-stretch-trousers-black-0-9.html]]

[[http://www.alexandra.co.uk/workwear-ppe/workwear/trousers/women-s-chino-trousers#.V73ZBWXv6r4]]

There must be something if you google 'nurse uniform" or "salon uniform"