Wore these once on a hike around 9 miles long. Moderate uphill and downhills, small bit of climbing. They do what they advertise as far as being breathable and quick drying, which were awesome. However, about 30 minutes into my hike the tag became extremely bothersome once my pack was on and was rubbing in that area. Had to cut the tag off. Also...this is a thong ladies and Its great if you don't want panty lines to show through, which was my primary reason for purchasing these, but honestly they would not be my go to pair of underwear for a longer hike like the one I did. They ride up. Would probably be fine for an easier hike under 4 miles.