I wear Medium 686 jackets because they run big, and Medium fits perfectly.... since this is "slim" should I get a large?

Tech Specs:

Material:

[shell] tweed; [lining] taffeta (210T) 

Insulation:

polyfill (40g) 

Fabric Waterproof Rating:

10,000 mm 

Fabric Breathability Rating:

10,000 g 

Hood:

yes, fixed 

Fit:

revolver (slim) 

Length:

below hip 

Venting:

underarm zips 

Powder Skirt:

yes 

Pockets:

(external) 2 front hand, 2 front chest, (internal) 1 chest media, 1 chest mesh goggle, 1 bottom hem pass 

Seams:

fully taped 

Wrist Gaiters:

no 

Recommended Use:

snowboarding 

Manufacturer Warranty:

1 year