Pelican Storm Cases are the best in terms of dependability, longevity, and durability.The Pelican iM3100 Storm Long Case is made of strong, lightweight HPX high performance resin. The iM3100 Storm Case is virtually unbreakable, dent-resistant and shatter-resistant, tough, rugged, chemical resistant and corrosion proof, airtight, high density foam and watertight, therefore, providing total subjection and protection against impact, vibration or shock for any of your equipment! There is a permanently attached Vortex valve that automatically adjusts air pressure without letting in water as well as an exclusive neoprene o-ring and ABS latches seal perfectly. Press & Pull latches open with the push of a button, yet stay closed securely under impact or stress. The case has unbreakable molded-in hasps allowing for the addition of standard size padlocks. It has hinges with integrated feet which hold fast under impact and create a flat surface for upright stability. It is carried by a double-layered, soft-grip, solid-core handle that provides strong, durable comfort.