IKEA Knalla-poncho: https://www.ikea.com/jp/en/p/knalla-rain-poncho-black-40283422/
IKEA Saltsten rain-poncho: https://www.ikea.com/jp/en/p/saltsten-rain-poncho-30528364/
Price in swedish crowns: divide by about 10 to get Euro-price.
Starting from SJPdP you will pass Albergue Ferme Ithurburia (Hontto) in km 5,3.
Thereafter is the gravel path ziczacing steep upwards (worst part indeed).
When this gravel part joins tarmac way, there is Gite Kayola in km6,7.
Kayola is part of Orisson, but 800 meters before. Beds available, all...
Something like this:
Use it as a blanket or quilt.
My fafourite except in winter.
In addition to Burda (after Orisson) there are beds in Kayola, about 800 meters before Orisson. Booked via Orisson. Dinner and breakfast is possible in Orisson.
One possibility is to walk to Orisson, take a taxi back to S.Jean, take a taxi in the morning to Orisson and carry on. Easy, if you are...