Hi, I'm 5'9" and 190 lbs. using large size on Alchemy jacket. What size should I use on Dragons?

Tech Specs:

Material:

[Shell] Torch Soft Shell; [Laminate] WindStopper 

Waterproof Rating:

Not specified 

Breathable Rating:

Not specified 

Core Venting:

Underarm zips 

Pockets:

2 Front welded, 1 chest welded, 1 interior MP3 with earpiece cord exit 

Seam Taped:

No, welded seams 

Powder Skirt:

No 

Hood:

Yes 

Zip-in Compatibility:

No 

Weight:

1lb 5oz (606g) 

Recommended Use:

Mountaineering, alpine climbing 

Manufacturer Warranty:

Lifetime 

Country of Origin:

China