I never gave away my vinyl 45 rpm record albums. Actually, I got quite a few--without sleeves--from a friend of my father. He owned a small diner in the 1960s and 1970s and he never gave back some of the 45's he got for his jukeboxes. There these 45 rpm records sat, away in my closet for quite a few years--until recently when I started taking them out, dusting them off and discovering that some of my favorite music never made it to CD. Therefore, I actually BOUGHT record albums over the last year. It's great to hear those old tunes on vinyl once again--and these paper protectors for the vinyl record albums really help protect them. In addition, the window of the paper sleeve lets you see the record label very easily.
When I was young I never worried much about sleeves for these records although I took good care of my records. Lately, however, I became concerned because the actual records themselves were not sufficiently protected against dust and other elements. These paper sleeves by Square Deal Recordings and Supplies are actually rather well made and they protect my cherished 45s very well. There's no plastic inner lining; but these sleeves are still far better than leaving the 45s to just lie around completely unprotected
I can't really think of any downside to these paper 45 rpm record album sleeves. They do a wonderful job of protecting your vinyl 45s.