I've recently been buying trousers made by Craghoppers. The Kiwi trouser is hardwearing, available in loads of colours, different leg lengths and has eight pockets of which 5 are zipped and one velcroed. They have double seat and knees and are a good poly-cotton mix. I've got four pairs now and I'm looking for more because the British Winter is the time to buy what are seen as travel trousers.

The website is:

http://www.craghoppers.com/men/trousers_and_shorts/Kiwi_Trousers.cfm