Can hold ALOT of stuff. I have fit in 3 or 4 boards, two sets of bindings, helmet, gloves, jacket and a bunch of other stuff. The only downside is that it is not super padded, so try to put anything along the edges of your board to protect it if flying. United somehow smashed the edge of my board in about 1/8" last year flying from JH to denver. Looks like the smacked the edge on a rail or something.
However, I have flown on 4 trips with this bag, and it is still holding up well.