Beautone Document Wallets have a button down flap for extra protection of your material.
The clear material they are made from is tough and trasparent enough to allow you to identify the contents.

Push Button Envelopes

Clear Polypropylene Pockets with Snap Lock Button, holds around 50 Sheets 80gsm Paper. Available in A4 and A3 Size.

LMZ Hand Sanitizer Tube

LMZ Antibacterial Hand Sanitizer 40ml Tube. Available Individually for $0.60. Bulk deal for $0.40 Each.