But so far I had not made use of any of Brian's Crivit tights for some outdoor activity during the six years I had had these tights, and this neither his Red Crivit tights, his Grey Crivit tights or, in this case, his Blue Crivit tights. Of course a partial reason for this is the two knee surgeries I went through in 2019 an 2021, and which stopped my outdoor running for nearly three years until April 2022.