my wife 163cm, 110lbs, will size M be fitted? Is it warm?

Tech Specs:

Material:

[Shell] Infidry-10 

Insulation:

[Body] 120g polyfill; [Sleeves] 80g polyfill 

Waterproof Rating:

10K 

Breathable Rating:

8000g 

Fit:

Regular 

Core Venting:

Mesh-lined vents 

Pockets:

2 Front, left cuff stash, right cuff mirror, internal audio, internal storage 

Seam Taped:

Yes, critically 

Powder Skirt:

Yes 

Wrist Gaiters:

No 

Hood:

Yes 

Recommended Use:

Snowboarding, street 

Manufacturer Warranty:

1 Year