does anybody know how this jacket fits? I normally wear an xs in burton coats, but didn't know if i needed a s or xs in this one.

Tech Specs:

Material:

[Shell] 100% polyester with DWR; [Lining] polyester 

Insulation:

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

Fabric Waterproof Rating:

8K 

Fabric Breathability Rating:

8000g 

Center Back Length:

26.5in (67cm) 

Venting:

Underarm zips 

Pockets:

2 Hand-warmer, internal media, pass pocket 

Seams:

Critical seams taped 

Powder Skirt:

Fixed 

Hood:

Fulltime 

Jacket-Pant Connection:

Yes (zipper) 

Recommended Use:

Snowboarding 

Manufacturer Warranty:

1 Year