I bought for my G Pad a 8" Yarvik sleeve, but as almost every 8" tablet, the Yarvik sleeve is designed for those squarer 8" (our G Pad is more like a rectangle). So in for height the G Pad fits great, but in width there is a lot of empty place, so the tablet inside is moving to the sides. Still better than nothing though...
LG G Pad 8.3 - 4.4.2, 32GB Sandisk MicroSD, Snapdragon 600 Inside
ZTE Grand X IN - Stock 4.0, 16GB Kingston MicroSD, Intel Inside
Sony Ericsson Xperia X10 Mini - MiniCM7, 8GB Kingston MicroSD, Qualcomm MSM7227 Inside
Sennheiser IE80, Audio Technica CKM55, HisoundAudio E212, Acer TimelineX 5820TG, X-Mini