how's the sizing on these? i fall in between sizes on marmot's sizing chart—i wear a 33" or 34" waist. do they run big or small? is there a waist adjustment on these? thanks!

Tech Specs:

Material:

[Shell] MemBrain® 2L (100% Nylon); [Lining] 100% polyester HD brushed tricot 

Waterproof Rating:

20K 

Breathable Rating:

20000g 

Fit:

Relaxed 

Side Zips:

Yes 

Venting:

Side vents 

Pockets:

2 Zippered front, 1 zippered back 

Seam Taped:

Yes, fully 

Waist:

Belt loops, adjustable tabs 

Gaiters:

Yes 

Weight:

1lb 7oz (652g) 

Recommended Use:

All-mountain skiing 

Manufacturer Warranty:

Lifetime