I'm 5'9", 150lbs. Looking to fit this over some layers,possibly a fleece or a packable light weight puffy. Any suggestions for size?

Tech Specs:

Material:

[Shell] 75% polyester, 20% polyurethane, 5% spandex; [Lining] 60% Tactel, 30% Coolmax, 10% Lycra 

Waterproof Rating:

Water-resistant 

Fit:

Athletic 

Core Venting:

No 

Pockets:

2 Hand 

Seam Taped:

No 

Powder Skirt:

No 

Hood:

Yes, fixed 

Zip-in Compatibility:

No 

Weight:

6.9oz (196g) 

Recommended Use:

Climbing, hiking, backpacking, skiing, snowboarding 

Manufacturer Warranty:

Lifetime