Does the length of this jacket differ when going from a L to an XL? MB's website doesnt have measurements from top of collar to bottom of waist, only waist size, arms, inseam etc. I'm 6'4" and about 200lbs, pretty trim and athletic and got the XL. It seems perfect in the arms and lengthwise but quite baggy in the waist area which makes me wonder if I could have sized down to a L which is what I typically wear (pretty much the same concern one of the previous posters voiced) I would be concerned about the L being to short for my torso and in the arms if I were to exchange it...Again, does anyone know if the lengths differ in each the L and XL (from the collar to the bottom of the waist hem)?

Tech Specs:

Material:

15D Ballistic Airlight ripstop nylon 

Insulation:

800-Fill down 

Hood:

Yes 

Pockets:

2 Front 

Waterproof:

Water-resistant 

Core Venting:

No 

Weight:

[Size M] 7.4oz (230g) 

Recommended Use:

Compact winter insulation, backcountry layering, fastpacking 

Manufacturer Warranty:

Lifetime 

Country of Origin:

China