Finding the perfect boots is far from simple... leading up to my purchase of the Supreme, I tried on tons of different brands, styles, what have you. I quickly found that for my foot shape (which is slightly wide for a women's foot, size 8 1/2 to 9 in street shoe) Burton was really doing the trick. I decided on a 8 1/2 boot (my toes are in contact with the liner until I get into my stance). The Supreme gives me absolutely zero heal slip!! The liner is awesome, really high quality stuff. I love the upper/lower zone lacing system (I didn't think I would - I'm typically a traditional lace kinda gal) and it seems to be really well built (wont crater on you like some boa systems, etc.). My only gripe is that they do get a little wet after a full day of riding. Good thing is, it's not noticeable until you get 'em off.