Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to wear sneakers outside the gym [title] Reconsider your running shoes. [step] Running shoes aren't just for marathons. They can be a pleasant addition to a variety of outfits for every gender and age.

Ending1: They have the strength to support you throughout and are very comfortable to wear. They are also breathable and are easy for your feet to slip and fall in. Ending2: The key is making sure they add to, not detract from, your fashion ensemble. Go for colors and shapes that complement, rather than clash, with your clothing. Ending3: However, wearing athletic running shoes indoors outside will dramatically lower your fitness level and flush toxins and sweat out of your feet. [substeps] Doing this can be quite beneficial for at least two reasons. Ending4: Many guys are already wearing them, as are other men. Each of these guys will need to consider running shoes.

Answer format: ending1/ending2/ending3/ending4