I am looking for a flat pedal but mine weigh 300 grams ... Everyone ...
Well they exist, but relative to the 500g extra 5.10/Teva Links/Vans shoes weigh over SPD shoes and the general rubishness of too small / too light pedals are you still sure it's worthwhile saving 150g over some really good pedals that will grip better, wont give pressure/pain/hot-spots in your feet, won't fall appart at the first sign of rocks and have bearings which will last a season?
Saving weight in pedals is about as usefull as cutting your bars down to 200mm, cutting a seatpost too short and using uncomfortable saddles to save weight.
The lightest I'd recomend are nukeproof electrons, I'm still not convinced plastic is as good as aluminium for pedals, but other people seem to like them and at least they're full sized.
I crashed and went to flat pedals for a while, I bought some £160 burgtech MK2 pedals. They weigh 750g but I still think they're the best flat pedal ever made. Pedals are one place where the weight isn't noticable.