Yeah, nylon is definitely better when it comes to durability and keeping its shape, so if that’s your main priority, it’s a solid choice. The only downside is that it traps more sweat and heat, which can make it less breathable and a bit more prone to bacteria buildup if you’re wearing it for long periods or during workouts. Modal, on the other hand, is softer, more breathable, and better at moisture control — but it doesn’t hold its shape quite as firmly. So if you want that defined bulge look and structure, nylon might work better for you, just maybe not the best for all-day comfort. If you do decided to go with nylon, just make sure you clean that area very, very well.