Hello I feel I need to bite the bullet and buy some zip off/convertible trousers for this summer. Preferences: Lightweight. stretch material Belt loops (essential) Zip off ABOVE knee. Suitable for a traditionally built backside... Ideally under £60 but flexible. I have craghoppers kiwi pro stretch shorts and they are extremely comfortable. I like the stretch Terra's but to my knowledge they don't make zip off in stretch. Nothing has caught my eye as yet, any recommendations?