These are waxy potatoes.
They are marketed as all-purpose for direct to consumer sales and for processing into French Fries (aka chips in the UK.)
Sante Potatoes were developed by a J. Vegter in Veendam, the Netherlands, in 1971, from a cross between two potatoes referred to as “SVP Y 66-13-636” and “SVP AM 66-42.”
Vergroesen, Jacques. Agrico / Bioselect Potatoes. Report of an excursion to demonstration fields with varieties for organic cultivation on 23 June 2008 at the Kollumerwaard experimental farm in Munnekezijl (Northern Netherlands). June 2008. Retrieved August 2009 from http://www.organicseeds.nl/talen/en/activities.html.