The length of Rin's kimono is different in this episode. In this episode when she is climbing the side of the mountain you can clearly see that it goes to her knees. In all of the other episodes, the kimono goes to her ankles.
(Following Jinenji talking about how much Rin reminded him of Kagome)Kagome: Stop, Jinenji. You're embarassing me.
Inuyasha: Let me correct you there, Jinenji, cause I think you got something all wrong.
Jinenji: Huh?
Inuyasha: Kagome's heart is a lot smaller than you might think.
Kagome: Inu-YASHA!
Inuyasha: Huuh??
Kagome: SIT!
Inuyasha: What'd I tell ya, Jinenji, would a kind-hearted person do that?
Kagome: SIT! (smack) SIT! (smack) SIT! (smack) SIT! (smack) SIT! (smack) SIT! (smack) SIT! (smack)