Container with gripy cap

Sorry about the size but every time I remix something in 123 Design I save it as an STL then use Meshmixer to make it solid. When doing that I have to crank up the triangles to get a more perfect model. I see other STL's that are as or more complex and are far smaller in size.

Anyway, all I did was add some bumps. Enjoy.

After SpikeUK's suggestion I tried fusion 360 and reduced the mesh. Added the reduced stl. Cant print it yet so I cant say as to how it will turn out just yet.