I really love the design of Sweaty Betty running/gym leggings, with the zip pocket at the back and the phone pockets at the side, but sadly the quality isn't what it used to be and the last two pairs I have bought have had the inner leg seam come apart after a couple of months (SB were great and refunded me even though I was outside the returns window). Can anyone recommend any brands that are of lasting quality and have pockets - particularly the zip one at the back. Thanks!