I didnt anticipate the length of the brackets making them so deep, which is great because I actually plan on using these shelves. Owe it to them. OK, let?s move forward shall we?Pros:Comfortability level from 1-10 [ 6 ]Durability- can?t say because I?ve only had them for 2 weeks. Not perfect, they can hurt the ears a bit after hours and hours of wear. This size 12M is snug, but I have no fear of my feet coming out of them. Bluetooth Quality (10/10)It is the strongest among all my pairs of Bluetooth IEMs and headphone. Working range is approximately 10 metres. I dont know what Adidas was thinking when they changed their design. I washed and dried it to see if it would shrink but it didn?t which would usually be great. Never thought Id find a good replacement for my old Alps sandals, but these are the ones.