About this 3D model

Anytime I take my pack off, there is a chance this mouthpiece drags on something gross. Also, I've found sometimes I throw the pack in my car and the mouthpiece can leak all over when it gets pinched. You can buy a similar cover for $7-14, plus shipping, or you can print it in about 20 min or so. It came out perfect for my needs. On the ID ceiling It bridged well with no support inside using my Replicator 2. I did the STL on TinkerCAD in about 3 minutes. My buddy Garrett generated the g-code with simplify3d. Enjoy.