Rubber Strap for PO 8900

My first post and looking to purchase my first Omega, the white dial, orange bezel PO.

I would really like to wear this on a rubber strap as already have 2 Rolex on SS. The Omega website doesn't show any rubber straps for sale and would be good to know if they can be purchased from Omega, or if not a good third party strap?

Ideally would like an OEM strap so it's a nice snug fit between the lugs. I like the look of the grey/orange strap on the Titanium PO if that's possible to buy?

Thank you in advance guys and looking forward to becoming part of the Omega family.