Below are possible answers for the crossword clue Protective envelope.
6 letter answer(s) to protective envelope
COCOON
retreat as if into a cocoon, as from an unfriendly environment; "Families cocoon around the T.V. set most evenings"; "She loves to stay at home and cocoon"
silky envelope spun by the larvae of many insects to protect pupas and by spiders to protect eggs
wrap in or as if in a cocoon, as for protection
Other crossword clues with similar answers to 'Protective envelope'