Ill keep my fingers crossed that the replacements survive the abuse I plan on putting them through! But once the poles are threaded into the base, some are not threaded straight. The front is wide, and has a lovely large toe-box, which makes my feet very comfortable. Please dont purchase this product. At first I was a bit concerned as they felt a bit snug (I have big feet) but I read the note that came with the package that said that they would adjust to my feet with wear and did they just. You can customise your own memo. Denn optisch wirken sie von außen sehr groß. I didnt try out all of the functions, but I noticed that they can increase/decease volume with a single tap on the right/left earbud, and that wasnt mentioned in the manual. Plus its really soft. I love everything minimalist and am especially obsessed with cable management.