i'm 5"11 and 145 lbs. Chest size 36'. Does size S fit me for the Gunsight Component Jacket? is the fit more of relaxed or athletic?

Tech Specs:

Material:

[Shell] Marmot MemBrain canvas; [Shell lining] Shadow Rip DWR 

Insulation:

[Removable liner] MarmaLoft insulation 

Waterproof Rating:

[Shell] Not specified 

Breathable Rating:

[Shell] Not specified 

Core Venting:

[Shell] pitzips 

Pockets:

[Shell] 2 hand, 1 internal goggle, 1 internal media, 1 sunglass; [Liner] 2 front, 1 chest 

Seam Taped:

[Shell] yes, fully 

Powder Skirt:

Yes, removable 

Hood:

Yes, removable 

Zip-in Compatibility:

Yes, removable liner included 

Weight:

4lb (1814g) 

Recommended Use:

Skiing, snow sports, mountaineering 

Manufacturer Warranty:

Lifetime