Knickers! Big ones

The Sloggi long legs are 95% cotton. I wore them when we went to Spain. It was very hot but they were comfortable and worth it for the lack of 'chub rub'. I have just bought another pair.

They also do them in black

Details from Amazon

Best-selling range is now even better
New generation soft seams offer complete comfort and total invisibility
95% Cotton, 5% Elastane
Machine Wash
Brief
10007643
LYCRA FREEF!T X-MOVE quality guarantees perfect fit
Super soft core spun cotton for amazing feel
Picot elastic edge
Stable elastics
Long-lasting colour brightness
Cotton gusset
Sloggi branding on waistband

Sorry - I meant you can also get them in nude

I don't think they make them for women yet but Step Ones are brilliant - everyone I know who's tried by them recommends them.

Not Sligo!

Thank you, PinkCosmosyes, I am a victim the rub. I have actually been looking at Sligo, I’ll probably get some of those. But they look a bit hot for in this weather.
They are also for sleeping in, but I can’t even find any suitable pj shorts. Marks had loads, but not at the moment.
I find that having just a little bit of ‘leg’ in the shorts keeps my mammoth thighs apart.

Have you tried the long leg briefs that are more closely fitting. I have a couple of pairs of the Sloggi ones. They were around £11/12 from Amazon. You can also get them in white There are other brands available.

They are very comfortable and don't ride up. They also stop 'chub rub' which is the reason I bought them - to wear with dresses.