I ran an impromptu little test this week on two of my favorite mid layers. I did assault bike intervals on Tuesday and again on Thursday. 10x 90 seconds hard at 80+rpms with 1 min rest between. I Ran a core lw hoody, and for test 1- I ran the heavy hoody on top. Test 2 I ran the ligjtweight core and Midweight zip t. My garage is 37 degrees right now so I started off cold. I was overheated by round 3 with the heavy hoody. I kept it on to sweat it our, and by round 5 I was soaked throughout my chest and low back. With the midweight I actually made it through to round 8 before I got sweaty enough to be uncomfortable. After finishing each, I set a timer and checked the dryness of each piece while I wore them and walked around the house. The heavy was still noticeably damp 45 min after the intervals. The core LW under it felt dry within 15. The midwright was still noticeably still little damp at 20 min, but by 30 min was completely dry along with the lw under it. Obviously not scientific enough to be concrete- but I'm more impressed with the mdiweight than I was before. I bought it by accident at the reeds outlet when it was on sale. Saw the price Tag of 45 $ and though it was another heavy hoody since it was on the rack between a bunch of other sitka pieces. When I grabbed it I handed it off to my wife to look through more pieces and didn't even look at it since it was marked as a heavy hoody in size L. Got it home and it was mismarked. It's an xl midweight nd the tag that was put on it was a large heavy hoody. I think the tags had been knocked off or something and someone had put it on the wrong item.
now heres the cool thing- I think for high activity and especially warmer weather it's actually more awesome than I gave it credit for. I was impressed with its breathability and lack of that sweaty feel while I was doing the intervals. For a cost effective mid layer for high activity it might be a really good choice. Not that I need more sitka, but I gained more appreciation for that piece after putting it to hard use.