I had a pair of DT-770's before that was destroyed by heavy use, but also by me lugging it around so much. Now that won't happen again because I can protect my precious headset with this case!
Like i read in other reviews: it IS a bit tight, especially where you need to tuck the wire that comes out of the left speaker a bit so as to close the zipper. Therefor not a 5-star at handling, but still, overall, a very good and useful product.