Mistral Standard Chair from G Plan. The G Plan Mistral is a perfect fusion of style and substance. A design that is soft and inviting, using only the highest quality materials such as the premium quality foam and fibre cushion interiors offer lasting comfort and support. With G Plan SnugSit seat cushions, which embody a combination of foam and memory foam with a feather quilt and fibre top. Whilst it’s innovative ErgoSit foam offers the ultimate comfortable encounter, paired with nine-gauge ‘D’ serpentine springs for durability and lasting support and comfort. Crafted in a soft to touch fabric with luxuriously padded arm pads, it’s the perfect place to relax in style.