The best lightweight shirt I have bought in years. I was a little skeptical of the high price but I have used Outdoor Research gloves and hats in the past and they were of the highest quality so I thought why not. I bought this for a family trip to Orlando and put it through its paces at Disney World / Sea World (including running in the Florida heat). I felt like I was wearing nothing in the best way possible. Very, very comfortable and soft. I was barely sweating in 90 degree plus heat and humidity and the shirt didn't smell even after two straight days of herding kids around for 10+ hours. I cannot recommend this product highly enough.IMO this is the best warm weather active T-shirt. Wicks moisture well, dries fast, and is so light weight you don’t even feel like you’re wearing a shirt. I love these shirts and own many. Great for any activity. It’s my go to warm weather backpacking shirt. I wear it when running, lifting weights, punching a heavy bag etc... the best!I have several of these shirts. They breath and wish sweat exceptionally well. Especially good for hot weather to provide some SPF protection. I love these so much I just invested in the long sleeve zip pullover version to add to my collection. Recommended wholeheartedly.Amazing workout shirt! Helps keep me cool while running or exercising. It is very breathable yet super comfy. Worth it! If you are going to be working out for months, this shirt will hold up!Echo shirts pack up small, are very light, and dry fast. They are great for backpacking and travel.Which I am giving on the basis of fit, feel and performance on it's first outing to date. I'm hoping for some more free time in the near future to give it some longer periods on the trail. will review again then.Perfect shirt for travelling. Compresses down to almost nothing. Dries quickly and does not retain odor. The side panels let you wear as outer shirt without looking to boring.Great shirt. Breathes well.