From a customer who used it on a recent hiking / camping trip: "I got a chance to try out the Seamless pieces on my trip. They were great I have to say. I slept in the long sleeve top three nights and ended up wearing it the last day under my fleece since a storm came in. No bra and it did not feel like I was hanging out. It was comfortable and did the job. No stinky odor either. I also wore the string bra for four or five days. I had others, but after wearing it once, I wanted to wear it every day. No underwires. It did not compress my rib cage and it felt great. Enough support for hiking and running around."