There aren't many options on the Kitsap Peninsula for roller hockey gear shopping, so a little road trip will be necessary. If you want to shop in person so that you can try gear on and ask questions of knowledgeable staff, you have two main options: Play It Again Sports in Lynnwood, WA and Elevate Sporting Goods and Equipment in Tacoma, WA.
If you know what you want, are looking for a wider selection, and are comfortable with making your selections based on sizing guides, there are several great online sources for gear:
http://www.inlinewarehouse.com/hockey.html
http://www.dickssportinggoods.com/ (they offer free in-store returns at their Kitsap Mall location for online purchases)