Equations That Changed the World Zipper Bags

If you're the type to understand the world through math, these elegant Equations That Changed the World zipper bags are for you.

Available in three styles, the cylinder makes a great pencil case or compact toiletry bag, the roomy rectangular bag will hold your medium to larger items – use it as a makeup bag or dopp kit, and the telescoping bag extends to house your brush pens and a full-size pair of scissors – and when open and retracted, it transforms into a desktop pencil cup with all your tools on display.