I love my Paws Off - Red bag. It's small and terrific for carrying around a crochet project or small knitting project (although the knitting needles might stick out a bit). There's even a pocket in there for your keys or mobile phone.
I've purchased several of these bags and really like them. The measurements are listed in the description, so there is no excuse for "Oh, No, they're too small". .I usually give the bags along with the gift project I've knitted. Mine have all been of the finest quality!
I purchased one of these project bags and although the quality of the material and construction of the bag is decent, the drawstring ribbon was all frayed up. This bag is not big enough to fit any project, maybe carry some crochet hooks and minor tools like tape measure and stitch markers, but not a full project. It isn't even big enought to fit a pattern without folding it. And be carefull with the light colored yarns, the red of the fabric looks like it will fade onto the yarns. Very disappointing.