Buy on Amazon : http://www.amazon.com/gp/product/B00018U7KY?tag=catfoodrevi0a-20

Canon LP1224 Soft Lens Pouch for EF 70 to 200mm f4.0L USM Lens

Protect your precision Canon lens from dust and the elements
Bag-like case with soft gray exterior fabric
Tough leather bottom
Drawstring closure at top
See product description for lens compatibility