eric

Joe- The Scarpa has had really good durability. The Ribelle run 2 shoe definitely is firmly in the moutain/ technical run shoe. So if thats the kind of 50k you are doing, great, otherwise there could be other options for that length of race. Reach out to us at help@skimo.co and we can dive deeper.

Lisa- The difference in width between the wide and regular is in the toe box. So my guess is you would not have any slop issues in the wide since your mid foot should still be held firmly like the regular. I could see side hilling for a long time you could have your foot sliding to the side some.

Chad- I would suggest in the Prodigio Pro to go with the 48.5 and in the Norda 005 to go with the 13 as there is no 13.5.

John- Unfortunately the quiver is not compatible with UD packs.

Robin- Seems like the lace diameter is about the same from your photo. Length should be plenty long enough.