So convenient! - Mont Bell Tachyon Jacket - Men's

I take this jacket as my backup second layer when I'm going out for a run where conditions might deteriorate. It's so small and light that I'm happy to carry it in my hand during a one-hour run. I now throw it in my backpack for all long runs/hikes because the space and weight is negligible.

The trade-off for such a light-weight material is that it does sweat a bit, but the full zip makes it easy

This review was written in the old system and had content requirements that are different than reviews written today.