The soundstage on the chinese/MKII is muted, muffled, indirect, muddy and cheap sounding. Im so glad I found this amazing belt! They are cute and fit true to size but I would not order them again. Im not sure if they would be comfortable to wear without that liner, I havent tried. Snug enough to stay on, yet loose enough to easily slip off. I must admit I have only had this mouse a few min now, but here is what I have learned:- Really comfy for my hand. +Volume control on keyboard+play/fast-forward/fast-reverse on F-buttons+cut/copy/paste on F-buttons+Screen brightness controls on F-buttons+Print Screen (F12)+Arrow keys+"clear" button on numeric keyboard+You know how when you want to zoom in on the browser page, you usually hit "ctrl" and the plus sign? this keyboard has zoom in/zoom out buttons. Despite these two things, I love this product and cannot imagine anyone else not loving it too! He wears them by himself and they come with those charms that stick in the holes of the shoes which I didnt know about. This one is adjustable, so when they size up to new bikes, I can recycle these.