Myhome New Seat Pads for Ercol Dining Chairs With Straps and Press Studs white, Brown, Black - Etsy UK
Inspirado Seat Pad Cushion for Ercol Windsor Chair
Inspirado Seat Pad for Ercol Windsor Dining Chair (Seat-width-422mm, 02-19 Bacardi-Blush Pink) - order several if a set is required : Amazon.co.uk: Home & Kitchen