Mark Todd blouson without the lining- i have a red one i use on warm days and its brill, keeps the wind off but doesnt cook you
Mark Todd denim jods- i use them all the time in summer as i dont get too hot in them, the thick ones are like thermals.
I also use the Robinsons ones, they have a bit of lycra in so they are stretchy and really thing but hard wearing, had mine about a year now and still look new and i wear them every day almost