It’s all about the environment, so always bring rain gear. Pack jacket and pants if you're planning on going native. Summer can be hot. Winter can bring snow. Fall and spring weather are all over the map, so wear your layers for a comfortable stay. Don’t forget your running, yoga, or exercise wear, and get a workout in. Major-league soccer with the Portland Timbers is a real treat, but tickets are tight, so plan ahead and sit with the “Timbers Army.” Across the river, Winterhawks and Blazers seats are more accessible.