Now that I'm finish telling you about what a large collection of workout clothes I have, I want to talk about my most favorite piece. Yes, out of everything I own to workout in, the Run: Swiftly Tech Long Sleeve is by far my most favorite Lululemon piece. I didn't even have to think very hard to pick this as my favorite. I know they make some really cute skirts, tops and bras and what have you but this here is...well I've yet to find it's equal. It is form fitting but in all the right places just like everything else they make. The thing that makes this item stand out over everything else for me is the way it feels against my skin. It feels like a second skin. I get cold easily. I know some people can dress in a t-shirt and tempo shorts in 40 degree weather and go for a run in the morning but that is just not me. It takes me many miles to get my body warmed up. This top makes it very comfortable for me to go running during chilly mornings. And unlike a lot of other long sleeve tops that I own, this one breathes (cause it like a second skin) so that once I do warm up, I don't feel suffocated in it or get too warm. And yes, I also wear this as part of my regular wardrobe and sometimes even to sleep! ;) It does it all!