From Mono:

“We’ve seen it (and done it) hundreds of times: grabbing the bass out of the side of a partially unzipped case while standing up. We do this to save space, to save time, or to save our backs. This observation became the driving concept behind the Vertigo, the world’s first top-loading guitar case. The top loading feature might have been enough, but the Headlock has been redesigned for automatic neck support. Then The Boot was created, a rubber sole designed for unsurpassed protection against vertical drops. The game has changed.“