Should I buy this bag for Shikoku 88

Should I buy this bag fir the trip I am making next summer to walk all 88 temples plus the optional 20 temples

This project is not mine before anyone asks but I have backed it but can cancel before it ends

Are their many steps as I assume I will have to carry this then as I was thinking of backing this to pull with my waist

https://www.kickstarter.com/projects/733349849/hipstar-the-worlds-best...

That looks like too much. I have only walked small segments of the pilgrimage route, and I have never seen anybody carry such a big bag.

According to one Japanese site, one should just carry: walking stick, hat, smart phone, map, walking shoes, rain gear, one day (two at most) worth of clothing, backpack.

There are convenience stores along the way to buy food/things as you need them, and you can wash your clothes at your accommodation. The rain gear doubles as a jacket.

I guess the question is if you will camp or sleep in hotels/minshukus... ?
if no camping, then reduce your luggage to a minimum. As the PP said.

Do some preparatory walks in your country just to get a feel for what you really need. You will see that each additional gram is heavy and there are not that many things you really need.

Also many people don�ft walk the entire pilgrimage but take buses / trains in between.

Enjoy your Shikoku pilgrimage!