watch out for the material left behind when you DO remove the thermal lining!!
I've got a pair of cheap textile trousers and jacket, which are OK (especially in the winter), however, in the summer when you take the thermal lining out, and only have boxers/shorts on the bottom underneath and a tshirt on top. where the trousers touch bare skin i.e. bottoms of legs and forearms, the material is that sort of shiny waterproof stuff, and it draws the sweat right out of you - its terrible.
Its so bad that putting a longsleeve T shirt on instead of short sleeved makes it much cooler as this material isnt touching the skin (im sure you know the stuff im talking about).
So if your in a shop looking, get that thermal lining out and have a feel