We asked a group of professional athletes about the oldest pieces of gear they still use every day.

Gear is constantly getting more innovative, but nothing beats the classics. These are the pieces five pro athletes keep coming back to year after year.

Joe McConaughy, Ultrarunner
When Joe McConaughy set the fastest known time on the Appalachian Trail last year, one piece of gear he relied on was his water filter. Only two ounces and about the size of his hand, the Sawyer Mini Filter is super-durable, outlasting some of his plastic water bottles. The filter is easy to twist onto his everyday water bottle, so McConaughy could refill his water supply in a stream, attach the filter and cap, take a swig, and keep running. He still uses it all the time almost a year after he set the record—an impressive life span for a well-loved water filter. “Despite intensive use, it still works,” McConaughy says.

Read the full article by Julie Brown here.