So, about the ASICS Gel-FIT SANA 3 shoes and their arch support—here's the scoop. The shoes are pretty comfy and flexible due to their lightweight build and breathable materials. But if arch support is at the top of your list, you might want to pay attention to a couple of points.

According to the manufacturer's description, these shoes are made with synthetic and mesh fabrics combined with a rubber sole. This makes them great for breathability and flexibility, which is awesome for things like walking, light cross-training, and low-intensity workouts. From what we found, folks generally like the sock-like fit and how light they feel on the feet, so they're nice for casual wear or easy-going exercises.

However, when it comes to significant arch support, they may not be your best bet. They're super comfy for light activities, but if you're looking for shoes to tackle high-intensity workouts or running, which require more stability and support, you might want to keep looking.

Also, their focus on flexibility means they might not be ideal for exercises with lots of side-to-side motion, since your feet could slip a bit, according to what some have shared.

Some people also mentioned that the sizing runs snug, so it might be worth it to go half a size up, especially if you use orthotics or just prefer a bit more wiggle room. Durability seems to be another thing to consider—if you're doing high-impact workouts, the soles might wear down faster than expected.

In a nutshell, if you want something comfortable and stylish for easy-going activities, these could work pretty well. Just remember, they're not designed for heavy-duty support, and for more intense workouts, you might need a different option that offers better stability and durability.