They apparently are not Warpstreme, from what I understand. I don't like Warpstreme at all for golf shorts (way too thick / hot, IMO). The material makeup is different, see below from their site.
ABC Classic-Fit Golf Short materials:
Body: 95% Nylon, 5% Elastane
Pockets: 100% Recycled Polyester
ABC Classic-Fit Short Warpstreme materials:
Body: 54% Recycled Polyester, 46% Elastomultiester
Pockets: 100% Recycled Polyester