Shoes run small - Altra Arrows Olympus 3.5 Trailrunning Shoes - Men's

I have worn Altra shoes for a few years now. Lone peaks, Timp 1 and Timp 1.5s. When I received these in the mail I was excited to put them to work. As soon as I put them on I knew that something was not right.....they were too small. I sent them back and never had a chance to use them so my advice to others is order a half size bigger than what you normally wear. I am a 12.5 in all other Altras but need a 13 to fit like the others I’ve worn.