I purchased these alongside the matching sports bra, lovely vibrant colour. Good price too as was on offer. They have good length and a nice high waist band (I’m 5ft5).  I ordered a size small as I’m a uk size 8 (60kg female) found them pretty snug, very tight to get on and not a lot of room to give. They feel nice and fitted once on though. Squat proof yes! But the waist band rolls a little bit when you begin to move around.  I would recommend them but if you are inbetween sizes then go up a size. 

I love the colour of these leggings. I've been buying My Protein leggings for YEARS and have always bough a size M without any issue but these leggings are definitely a smaller fit. The waistband rolls down and I feel like I'm constantly fixing them....maybe this wouldn't happen with a bigger size....but it's hard to know if it's a size issue or the material and I don't want to go through the effort of having to buy multiple sizes and return one. If you're unsure about size, my advice would be size up!