His brother may not be able to walk or even talk, but 8-year-old Noah Aldrich thinks he’s “perfect.”

“I like everything about him,” he told KTVB-TV. “He’s perfect.”

Noah’s brother, 6-year-old Lucas, was born with lissencephaly, a rare crippling brain condition that limits mobility and lifespan, but his Boise, Idaho family has never let his condition get in the way of an active lifestyle, they told KTVB.

Image source: screengrab via WMAQ-TV

Image source: screengrab via WMAQ-TV

So when Noah told his mom that he wanted to take Lucas along on a kids’ triathlon, she was supportive.

Noah pulled his brother on a bicycle…

Image source: screengrab via WMAQ-TV

Image source: screengrab via WMAQ-TV

…pushed him in a stroller…

Image source: screengrab via WMAQ-TV

Image source: screengrab via WMAQ-TV

…and even towed him in an inflatable raft.

Image source: screengrab via WMAQ-TV

Image source: screengrab via WMAQ-TV

When the brothers crossed the triathlon finish line last month, it was a triumph for the whole family.

The Aldrich family hopes to turn their experience into help for other families through the Lucas House, a charitable organization serving children with life-threatening conditions.

See more of the family’s story from KTVB here.

Follow Zach Noble (@thezachnoble) on Twitter