Kraft paper

strong brown paper used in shopping bags and for wrapping packages

Kraft paper is paper produced by the Kraft process from wood pulp. It is strong and relatively coarse. Kraft paper is usually a brown colour but can be bleached to produce white paper. It is used for paper grocery bags, multiwall sacks, envelopes and other packaging.
See more at Wikipedia.org...

Noun
1. strong wrapping paper made from pulp processed with a sulfur solution
(synonym) kraft
(hypernym) wrapping paper