Polder is knitted lengthways, starts with a provisional cast-on, and is joined by grafting or Kitchener stitch. The Polder pattern is a variation of the Estonian braid, set into a stocking stitch background. Finally, the edging is knitted in the round from picked-up stitches.

Polder is part of the Ebb and Flow Collection - a range of designs inspired by the bleak beauty of the Essex coastline and river estuaries. Polders, or brushwood breakwaters have been installed at East Mersea in Essex to trap sediment, creating more salt marshes. These marshes will encourage birds and other wildlife, and will also slow down the erosion of the coastline.