Osiris is a skateboard clothing brand founded in California by Swedish skater Tony Magnusson, Brian Reid, Tony Chen and Doug Weston.

[1][better source needed] Before October 2014 the company sponsored skateboarders, BMX riders and surfers.

Brian later designed the D3 2001 shoes with Tony Magnusson.

The design was inspired by a shopping trip with Dave Mayhew (who later endorsed the shoe) during which athletic shoes and a hiking boot were purchased.

Osiris then released a lighter and less bulkier version called the D3 NTX.