I'm going to be trekking in Argentina in December for a week and a half and need a good wind and waterproof shell. This seems like it could do the trick but I'm wondering about it's ability to stand up to strong gusts. Thanks for any input.

Tech Specs:

Material:

[shell] Bombshell Lite (3-layer, mechanical stretch) 

Fabric Waterproof Rating:

20,000 mm 

Fabric Breathability Rating:

20,000 g/mē 

Hood:

yes, full-time 

Fit:

3-D Ergonomic 

Center Back Length:

24.5 in 

Length:

hip 

Venting:

underarm zips 

Powder Skirt:

no 

Pockets:

(exterior) 2 front hand, (interior) 1 chest stash 

Wrist Gaiters:

no 

Liner-Compatible:

no 

Weight:

13 oz 

Recommended Use:

ski touring, lightweight backpacking, climbing 

Manufacturer Warranty:

lifetime