Jack Osbourne designs daddy diaper bags

Jack Osbourne has launched his own collection of baby diaper bags for fellow fathers.

The son of Ozzy and Sharon Osbourne, who became a dad for the second time last year (15), unveiled his new project, Tier 1 Dad, on Instagram.com on Thursday (09Jun16), when he shared a collage of black and white images from the brand's first promotional campaign.

"So today is a very big day for me and my team! This is day one of @tier1dad," he captioned the shots. "This has been a project I have been working on for around 4 years and have put a lot of hard work and time into."

Jack, 30, reveals he first started developing the range when he and his wife Lisa welcomed daughter Pearl, now three, and he found himself having to use bags designed with mothers in mind.

So the extreme sports enthusiast set about creating tougher quality diaper carriers for men.

He continued, "What started as an idea while I was putting together my first diaper bag after Pearl was born has now come to life. I couldn't have done it without the help of my wife @mrslisao & my friend and creative director @joshwoolf...

"I am thrilled to start this endeavor into the world of gear and apparel. I am really proud of what we've accomplished, and I guarantee you our stuff is top notch. ***AMERICAN MADE, high quality, military-grade diaper bags for active, awesome dads."