I'm going the other way on the weight scale. And have had to order smaller undies.

But I would like to recommend the larger undies (that I'm now going to pack away for the triathlon-training-off-season)

Icebreaker Bikini

They are wool! (KNOT!!! Your fave!) They are cool, comfortable and not at all skimpy. They cover what needs to be covered. But they aren't granny-panites either. They also last for years and years and years. They are spectacular in high heat and humidity (Hawaii tested year round!) and I only wear these undies. I own nothing else.

They are not cheap. But I've had the same pairs now for over 5-6 years easy. So they are worth the investment.

I've had to size down from L to M and actually went with a little "smaller" cut.

Icebreaker Siren Bikini

Sexy!