Chaff free long underwear for running

[Babieseverywhere]

I am trying to up my daily treadmill walk/jog...but I am finding that around mile four my underwear is wearing a blister on the very top of my inner leg :(

I am looking for suggestions on suitable chaff protection underwear to wear under leggings. Any advice welcome.

Oh I am plus size so need big sizes.

Runderwear?

But I'll be honest, I go commando! Always have. Nothing to chafe

I am looking at these...But wonder if they would cope with running
www.amazon.co.uk/gp/aw/d/B00IN2AD22/ref=ox_sc_act_image_2?smid=A2BHPD5NLQYI9R&psc=1&tag=mumsnetforum-21

I prefer something like these..But not these particular pants as they will be too roomy in crotch as they are men's.
www.amazon.co.uk/gp/aw/d/B01NAAF3WI/ref=ox_sc_act_image_1?smid=A3Q1EX2YGU39II&psc=1&tag=mumsnetforum-21

Runderwear are fab, no chafing! Not cheap though

I like the look of these but fear they will be too small
www.amazon.co.uk/gp/aw/d/B01MZBU8VY/ref=ox_sc_act_image_1?smid=A3XEORJV4I6IV&psc&tag=mumsnetforum-21

I'd give the men's one a try. I can't say I find men's stuff is that much roomier.

Go without, or try Uniqlo seamless airtech pants. Very like runderwear and a fraction of the price.

Any microfibre no VPL knickers are likely to be OK too

If you buy good thick leggings no pants are needed. Gap blackout are brilliant.

I am already wearing seamless pants but the fancy edging is what is hurting me. I might try the plainer shorts version.