I'm 5 8" and 165 with 40 chest. I want to use the jacket only with a thin layer, and sometimes for skiing (in spain.. it's no cold) so with a 100 fleece, not more.

I was going to get alpha sv with M size but i've found good deals with sidewinder sv. Some friends told me that i should go for small size in sidewinder if i dont want to layer too much. What do you think guys??

Thanks for your help.

Tech Specs:

Material:

Gore-Tex Pro 

Insulation:

None 

Fabric Waterproof Rating:

guaranteed 

Fabric Breathability Rating:

guaranteed 

Venting:

underarm zips 

Powder Skirt:

yes 

Pockets:

2 front, 1 chest, 1 sleeve 

Seams:

seam taped 

Wrist Gaiters:

n/a 

Hood:

yes 

Liner-Compatible:

n/a 

RECCO:

n/a 

Weight:

628 g 

Recommended Use:

Backcountry skiing 

Manufacturer Warranty:

lifetime