I LOVE these tights. I wanted something full length for winter that I could use when going for walks or pilates and these are EXACTLY what I needed. For short girls out there, these fit me (158cm) perfectly down to my ankle - this was my major worry about this purchase as full length tights are usually swimming on me but these are perfect!
They stay up well, give me plenty of stretch in pilates movements and are automatically my go to pair of tights thanks to the handy pocket which can fit my iPhone in during walks.
On one side note, I didn't find them the best for high cardio work, purely because there is less skin exposed to breathe. And if you are a bit of a sweater like me and going to use them for high intensity cardio, I would go the black pair to reduce that pesky butt sweat patch (only when I did high intensity).
Otherwise I seriously can't recommend them enough. The perfect pair for walking and flexibility! Well done Nimble, you have a fan!