DREAM PAIRSWomen's Platform Chelsea Boots Combat Mid Calf Slip On Chunky Ankle Booties, Black, 7

These look really loose on the ankle. How do they fit real ankles, not bone-thin models? Would love an ankle tight boot!

I wear a Size 7 in Kids size . My feet are small but wide , what size would be best to get ?

are they waterproof?

I wear a size 7, do I get the same size and is it true to size ?