GreenGate Cushion cover Elwin white is a lovely cover made of cotton. New GreenGate Garden collection. Soothing blues, sprightly greens, and a garnishing of energetic pinks. Combine Elwin with Hannah to create a lush field of flowers brimming with matching colours and flourishing summery flowers. This item is made of 100% Oeko-Tex cotton and can be washed at 40 °C.