ANY KNOT WHICH ONE CAN UNTIE WITH ONE HAND ENTAILS NO GUILT.
The Mishnah goes on to specify items of women’s clothing, i.e. a laced up garment, ribbons and sandals which may be tied.
Our page goes into a long discussion about sandals, which knots are “permanent” and which are “temporary.” There is contradictory evidence about whether a sandal with a strap broken in public is considered like a utensil, which may be carried on Shabbat, or not. Complicated by the fact that a sandal can carry impurity (if worn by someone with a leprous condition or having a discharge) AND is also used for the ceremony of halitzah – a release by a widow of her bother-in-law’s biblical obligation to marry her. Sandals are complicated!
A debate over some of the details is held between Hezekiah and R. Johanan. When R. Johanan solves an especially tricky problem in a brilliant way, Hezekiah exclaims: “This one is not the son of man!” – A superhero rabbi.
Which leads to a comment about the loss of scholarship over the ages:
R. Zera said in Raba b. Zimuna's name: If the earlier [scholars] were sons of angels, we are sons of men; and if the earlier [scholars] were sons of men, we are like asses.
All over sandals and their knots!