The secret of these devices is to create an air gap,and to improve blood flow. Most seat covers being synthetic unbreathable materials, they act a bit like a plastic wrapper round a piece of meat, they make you sweat. Sweat with pressure causes skin acid sores and good old monkey butt! Your product and the beaded type products massage your backside to improve blood flow in that area, reducing the numbing effect which is caused by reduced circulation sitting down.

The best solution ( IMHO) for long periods in the saddle is natural sheepskin. Keeps you cool on hot days, is warm on cold days, and prevents the rubbing on the saddle, especially at the top of the inner thigh and on the backside. Sheepskin also has natural ''spring'' which prevents pressure on the backside which causes loss of circulation.

As an aside, here's something not many people know, and it's to do with diet. Persons who have a high red meat content in their diet have higher acid sweat discharge which is usually detected by noticeable B.O. No conclusive proof here, but skin sores would appear to develop quicker with higher acidity levels. I'm not vegetarian, but only eat red meat once in a blue moon. I use a sheepskin. In the last 3 years I've ridden over 50,000 kms and never once had a sore backside, but a slightly tingly bum once after a 450km not stop run!

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-''It is better to walk alone than with a crowd going in the wrong direction''. ( Herman Siu)
-'' Live life then give life '' (www.lltgl.org.uk)