Having made some of the most durable ballistic nylon bags we’ve ever tested—generally device-agnostic ones—Timbuk2 has set its sights firmly on MacBook Pro users with Spire ($99), a coated polyester backpack that looks a lot like recent designs we’ve loved from Chrome, STM Bags, and Mission Workshop. Built with a roll-top opening system and offered in either jet black or blue/gunmetal versions, Spire has a padded rear pocket…
