Can it zip on to tamarack jacket?
I don't know. I actually returned this item.
I love Marmot products, but this item was too small/tight for me.
I own the following in size Small and they fit just right for me:
- Minimalist jacket
- Approach jacket (fairly slim fit, but ok with not much under it)
- Precip full zip pant - small/short
- Scree pant - 30" short
The Alpinist is a slimmer, tighter fit; too tight for me.
I'm about 5'8", 150lbs, narrow, but very fit, somewhat muscular.