An ideal 8є angle ensures the natural 'S' shape of the spine is maintained. - A base of high resilient foam bonded to a topping of visco elastic memory foam - Even weight distribution - Supremely comfortable - Available with optional coccyx cut out and/or fixing strap - Size: 36x36x7cm (14x14x2ѕ"). If this product is showing as out of stock (red dot), please note that as we manufacture this product on site it can normally be manufactured and available within 2/3 days of receiving your order.