I love the X4D in general due to an extremely comfortable pouch and general high quality of workmanship. This style has a finer fabric from the other styles which [at least in the navy and pink colors] which makes it even more comfortable. This style runs a bit small [I normally wear a medium in ergowear styles but the large fits better for me]. The only thing that I would change is the center seam in the pouch - I like a clean pouch feel and look. I know that ergowear has a seamless design in the Feel collection but that pouch is not at all comfortable for me [pushes the anatomy to the side instead of comfortably lifting forward].