I went to the Decathlon several years ago and was very impressed with their hiking equipment. Although it is out of town, I remember it being a very easy/quick bus ride... Glad you found what you needed.
We opened our Camino shop in Pamplona (called Caminoteca) especially dedicated to pilgrims in May 2012.
Our shop is located in the heart of Pamplona /Calle de Curia 15/. It is only 50 m far from the way of Camino itself, very close to the Cathedral of Pamplona and just on the way to albergue Jesús y María, which is the biggest pilgrim's hostel in the town with 114 beds.
I hope we have everything what a pilgrim needs:
Maps & guidebooks, trekking poles, technical t-shirts, pilgrim's shell, hiking shoes/boots/sandals, ponchos, raincoats, backpack covers, Coolmax hiking socks, small size personal care pruducts, special foot creams, spork, flip-flops, knee/ankle support, sleeping bags/liners and many more...
I was just about to ask that question. I tried to order the Altus to have shipped to my hotel in Bilbao. Unfortunately PayPal doesnt' allow payment when shipping to an address outside of the US. Sure would be nice if Caminoteca could get them in as I'll be traveling to Pamplona from Bilbao in mid-April.