slide your side straps to the cargo carrier slits before you place the cargo carrier on your SUV or car. They fit, but a tad smaller. I think Im going to be happy with this one for a long time. I got rid of the Triple Drivers because they are heavy, HUGE, and uncomfortable in my ears. One thing I will mention, is soon after setting up a few buttons with new images, and at the beginning of my usage of the stream deck, I noticed one of the buttons lose a portion of the image horizontally. They are cute, and the footpad is comfortable, but the straps gave me multiple blisters----i only wore them for few hours. I ordered 1 size up from my usual shoe size and they fit perfectly. It was plug and play for Linux Mint 18. I would be curious to know when these defective units were purchased by people. I have a lot of boots and higher top sneakers so I removed some of the horizontal poles to accommodate.