Bag by Matt Nat, For those-must carry essentials, Recycled plastic lining, Twin handles, Adjustable single strap, Zip-top closure, Interior slip pockets. Since launching in 1995, eco-friendly brand Matt Nat has mastered the art of ethical bag making. Considering the welfare of the planet throughout manufacturing, the Mat(terial) Nat(ure) range experiments with recycled materials across backpacks, holdalls and wallets.