If you are concearned about the zips or any other areas buy some NIKWAX TX.DIRECT Spray-on waterproofing. Can be found in most camping/hiking/outdoor clothing shops.
Just spray it onto the zips and you'll be good to go.
Just bought some today for £7.99 and that's enough to do 2 jackets.
I just had a lady in a car turn onto me from the other side of the road, causing me to veer off into the
road she was turning into. Her excuse was 'I didn't realize you were going so fast!' Idiot.
^ for that getto hipster look!