Just been in-store to get one of these for work, Priced at £5.99 or .97 cant quite remember, Less then 25% offer.
JML Blurb "By giving your back a little extra support, you could help improve your posture and enjoy more comfort in your seat. Sit Right is the simple way to help align your spine when sitting, as well as allow cooling air to circulate.
Simply slip Sit Right over the back of your chair and you’ll instantly feel the difference. The spring cushion effect gives valuable support and added comfort, while the mesh grill acts as a vent to keep you cool. Raised spheres provide an extra special massage feature, so you go from seat to treat in no time at all. Stylish, lightweight and easy to use, Sit Right from JML is the quick, cost effective comfort solution"http://www.jmldirect.com/Sit-Right-PS1002/