The ACLC12 lens case is Ape Case’s zippered adjustable, attachable lens case for lens 70-300 mm long with a snug second layer of padding around the interior sides. This padding is removable providing the ability to change the interior size of your case. Depending upon the circumference of your lens, you can keep the “tube” in place or remove it for a thicker lens.There is a unique “criss-cross” strap and Velcro attachment system on the back of the case. This gives you the ability to attach the case to either a horizontal strap (like a belt) or a vertical strap (like on a backpack) up to 3 inches wide.Similarly to Ape Case backpacks, this case is made of sturdy nylon. The zippered lid overlaps the side walls providing extra protection from the elements. This case is suitable for most 70-300mm lenses.