This is a well constructed, great quality shirt that can be very versatile.  Comes in many colors and keeps those little pests away.  Since it does have a shelf life of 40 washings, I'd keep it for those times when you know you will be in highly infested areas of bug activity.  I purchased this for my husband when we were planning a trip to Africa with a 3 week safari - it is hard to imagine that my husband did not get a single bite during the entire time.  He now will wear it when he is doing yard work in the spring when the bugs are like vultures - it will make the work much easier and my husband much more agreeable to getting out there to get the work done.  Thanks ExOfficio for making this type of item available.