I have the beige cotton band, and I find it very practical. I use it during the day and at night. I feel the pouch is much more secure, and it doesn’t show under clothing. I recommend it.
The swim band is very useful for going to the sea and the pool without showing the pouch. It’s also great for daily use. The Lycra fabric is very well sewn. Unlike those sold in large stores, I’d like to mention that this one is stretchy, has fine stitching, and doesn’t have Velcro, which, in my opinion, makes it much more comfortable and less bulky.