what is different between fiber and urethane bodykit

hi i wanted to buy bodykit for my eclipse 03 but i am confused which fabric made i should use,can somebody told me what is the different between seven layer and urethane bodykit,because i want to buy it,its seven layer body kit is good looking after painted ,basically i want to use seven layer because its more cheap but if seven layer is very bad so i must use urethane ,thx for your help

dude...you pay for what you get...if you go cheap...it'll be cheap...fiber glass is the cheapest...but easiest to break...if someone hits you...hehehe...its done for...you cant really fix it...urethane is more durable...but cost more...from what ive heard...since they are something like a plastic...they contract and expand during different seasons...and can make your paint crack...or something...i just heard about it though...they mightve just had a cheap paint job...i dont know...just letting you know in case its true...hehehe...carbon fiber...is pretty expensive...especially a full body kit...HEHEHEHE...but well worth the investment...if your car is making money for you...if not...think twice...carbon fiber is lightweight and very durable...they use it on planes...

carbon fiber won't flex though, so when fitting it had better be perfect because if it isn't you can't bend it to fit

oh yeah dude...if you do get a carbon fiber kit...always ask them if it is hand layed...or if its just done with machines...the hand layed cf kits and parts are better...the machine layed ones can have some warping...hehehe...and like what Elchicoloco86 said...you cant bend it to fit...