Inc.'s Best in Class Awards are in their second year, celebrating great design across product categories from office and packaging to personal transportation and recreation. Through several rounds of voting, with input from our design and editorial teams at Inc., we whittled down entries to the finest, shining examples of design. In the list below, you will find designs that integrate form and functionality, creating not only sleek, but also incredibly useful products. And don't stop there. Make sure to vote for your top pick among the best-designed products of 2015. Inc.com will announce the Readers' Choice winner on Tuesday, May 26.