I don't like the yellow that change to blue as just sweat with cause them to change color and look just annoying and I never likes the huge name and lot number versions but the blue lines I don't mind, I dribble during the day and have had times where I will go and use the bathroom and find the middle slightly wet, the line gone but not saturated to where I can feel it, I guess that gives me an idea of my IC and if I notice something odd I can mention that to my doctor but normally I don't need them, now the ones I like are the fade away prints on some ABDL brands, adds a little fun and make it less clinical, At one time I found a Chinese brand that had a blue Seagull bird design that fade away, that was kind of fun and I would some times blame a friend of mine for making my birdies disappear. They where the only clinical adult diaper at that time that had birds.