This fin has options for hard, medium, or soft blade. What are the benefits/purpose of each type?
Harder the blade the more power from the fin, but it will also take more effort to kick. The Medium is a good choice if this is your first long blade.
Ive often had fin issues (pain, cramps, blisters) because of my foot size. I wear an 8.5 to 9 extra-extra-extra wide. What size should I order this fin in, if I need cold water boots to go with this? What boots would go with this?
Unfortunately we don't see any size working for a fit such as you describe. Most fins are not made in a "wide" size, so chances are strong you'll experience the same issues as previously. These fins, as with most full foot fins are not designed for use with a bootie. They are designed for use in warmer waters with a thin neoprene or lycra sock at the most.
SHOUT S1000, SHOUT S900, SHOUT S800
Extreme performance and comfort.
Model: fin and closed shoe in dual-material. SHOUT S1000, SHOUT S900, SHOUT S800 Shoe material: in thermoplastic elastomer. Blade material: blade in high elastic thermoplastic technopolymer module.