The #300 is the best heavy duty case to keep your gear safe from water, impacts, and the elements with our meticulously engineered waterproof, crushproof, and weatherproof hard cases, perfect for travel, photography, outdoor adventures, and industrial use. Foam Option - This #300 hard case includes convoluted egg foam in the lid. (1) base layer of 1″ thick foam. (1) base layer of 1.5" thick foam and (2) layers of 1.5" thick pluckable cubed foam that allows you to customize the fit to your items.