Can someone please explain difference between polyester and contender ripstop polycote as sail material please.

What are benefits of each, and which should cost more?

Many thanks

why not ask a sailmaker? I'm sure theyd tell you.

Well, seems they PolyKote is woven polyester and Contender Ripstop is for high performance sailing dinghies.

typo 'seems that' not 'seems they'