Thre is additional rinjani clothing : An extra jacket for night time. A spare set of clothes for the next day. this just meant another set of cotton shirt, leggings, and sports bra.
Small towel to use throughout the climb because you will sweat.
Extra socks in case your previous day’s socks got wet.
Fresh underwear, because of course, you need them.
Flip flops to change into once you are at the campsite if you can’t be bothered to lace up your shoes each time you get out of your tent. This also came in handy for our Lombok waterfall side quest! I just brought along my go-to pair of slim Havaianas.