The bag has a longitudinal zipper on one side to simplify assembly.
The cover for the objective is also zipped, while the "hood" for the eyepiece is attached with an elastic and a sewn-on band and closes with Velcro. The lens cap is heavily padded with extra shock-absorbing material, which basically makes the hard lens cap included with the tube unnecessary, at least in the field. The opening for focusing has a Velcro closure. The bag comes with a sturdy carrying strap, if you want to carry the tube separately.