chronic is 92 mm in the waist, tip and tail rocker along with thin tip and tail which allows it to have a light swing weight and makes the ski a little more playful in the tip and tail. Camber under foot which gives you pop and energy you look for in a ski, cap wall construction, line claims it helps with edges not pulling out. That's the chronic in a few words, great ski, 4 of my bosses all different skiers skied it last year at the on snow and all came back and said they loved it. It seems like a great ski, I was on the fence between chronics and kinks, ended up with a kink because i'm not gonna be in the park too much. I don't like the double times honestly, I had a pair come into the shop I work at like two months ago, they felt like 2 by 4's under foot with a super thin tip and tail which makes it a little playful, just not a big fan of surface, but that's my opinion. I'd say the chronic, but i'm biased