How did they hold up against water?Answering my own question for the good of the group.
Bought the Altitudes in size 10 (same as Thors) - fit is slightly more generous than Thors in a good way, wider toe box and more forgiving ankle / shank fit.
Both accommodate a mid/full cushion sock and Sheepfeet np.
Honestly, IMO - best two boot options for a multi-day hunt, where you might want a pair of boots at the truck.
Thor for big technical days in the mountains - Altitudes for an allround workhorse with mixed terrain, not as steep and deep or rocky. My two cents.