I'm not much bigger than you. I'm a 34 I got the large and they were fine.
As I mentioned before the Azzpadz are a little more uncomfortable on the chair but I don't consider that but needed to mention it again. They both shift around a bit on me so you still need to adjust a little especially after exiting the lift, I just give a little push down and off I go on the slope.
I like them both:
- Jumps: Skeletools doubled up
- Park: Azzpadz