Well, it depends, the white Ichigo in the picture can drive and wear them all day, mine start to feel uncomfortable the longer I wear them. They also hurt a bit trying to put in and take out but my friend has no problem at all.
Oh wow! I think I have a picture or two of you and your friend! I've been driving up to NJ from MD for the past two years to go to animeNEXT. lol I knew your cosplays looked familiar. I'm selling in the artist alley up there this year ^_^ Are you?