Where do Saga's pants come from? In episode 71, Saga wears his Gemini Golden Cloth when he was fully naked. But in episode 73, when his cloth shatters, we see that he is wearing a pair of pants. When did he put on those pants? Where did they come from? Were they hidden inside the Golden Cloth?


Just before he wears his cloth. (Episode 71)

 
When his cloth shatters. (Episode 73)
After rewatching this a couple times, I believe this is just a case of censoring.

When the Cloth is put on to begin with, there is really no way there could be a single, contiguous (cyan) fabric encased within it:



As you can see, the Cloth itself is made up of multiple pieces, so it's more than likely the pants did not come from the Cloth.

If we discount the option of him, somehow, off-camera, removing the armor and placing the pants beneath, the only option is that it was added as a censor; as @user301 noted in a comment above, the lighting when the Cloth shattered did not permit a shadow in Saga's groin area (nor did the subsequent shots allow blocking it); so, in order to not have to do a black box or pixelation, the production staff opted to use a concept similar to Magic Pants, permitting Saga to have a pair of pants remaining after the Cloth itself shattered.