Harbinger Padded Cotton Lifting Straps vs Leather Review

I am doing a quick comparison of the Harbinger padded cotton lifting straps vs the leather versions. I have used both for my heavy pulls in Toronto and there are definitely pros and cons to each. The cotton ones are very comfortable because of the padding and they are very easy to break in.

However the leather ones feel much more durable and I think they provide a slightly better bite on the bar. The downside to leather is that they are very stiff when you first get them and it takes a while before they wrap easily. I also find the cotton ones are better at absorbing sweat.

Which material do you all prefer for your lifting straps? I am trying to decide which ones to keep in my gym bag for the long haul. If you have a strong preference for cotton or leather please let me know why. I want to make sure I have the most reliable grip possible for my deadlifts.