BYO Bag — For when only a chill pill will do

From catalogs and websites:

BYO Bag

Handle snaps shut and loops around handlebars, backpack straps, belt loops, etc. for easy transport.

Insulates and keeps liquids cold (or warm) for up to four hours and protects glass bottles from breakage.

Made of soft, lightweight neoprene, the material used for wetsuits.

To use, simply pull sides down and drink right from the tote.

Folds flat when empty.

From BuiltNY.

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Black (holds 12-oz. bottle): $8.99.

Cranberry (holds 12-oz. bottle): $8.99.

Navy Blue (holds 12-oz. bottle): $8.99.

Cranberry (holds 20-oz. bottle): $9.99.

Navy Blue or Black (pictured; holds 20-oz. bottle): $9.70.