Diesel Cafe
257 elm st., somerville, ma
100% positive
Directions: Restrooms are located towards the back of the cafe seating area, with a large bulletin board between them. They are stained red and blue for style purposes ( Writer works at the location, can confirm) but are both accessible and non-gender designated.
Comments: While they have delicious food and drink, unless you are setting up shop to work, they don't mind if you stop in to use the bathroom, and often are so busy it won't be noticeable. Come back sometime and buy something if you can't that day, or just pay the refuge forward somewhere. :)