Also, the zipper does not zip all the way down the sides, so another frustrating design flaw making it difficult to add books & lunch-bag. The only and I mean only negative is that, it looks (ascetically) boring but thats Sennheiser in general. This particular model from HyperX is really good for the price as I was able to even tighten the timings using Ryzen DRAM calculator. He has used wired headphones, but he has to have his face 6 in. And super comfy. I have a Garmin G8 that I switch between a Clicgear and Stewart Golf manual push carts - this is perfect. I use earbuds every day, non-stop. Ive got a number of Geekria cases and theyre worth the extra cost as theyre always of a higher quality in material and build quality. I bought a pre-paid simcard from T-Mobile to test it out and it works great. Material qualityIts plastic.