One of the features with this is that it's waterproof.
From Selfridges
Estee Lauder 3C2 Pebble Double Wear Stay-in-Place Matte SPF10 Powder Foundation Refill 12g
Notino
Estée Lauder Double Wear Stay-in-Place Matte Powder Foundation and Refill powder foundation SPF 10 shade Pebble 12 g
Parfumdreams
Estée Lauder Make-up Face make-up Double Wear Stay-in-Place Matte Powder Foundation Refill 3C2 Pebble