1. Made of ultra-thin ice-silk fabric with cooling touch, breathable & quick-dry, lightweight like a second skin. 2. 4-way stretch material with wide seamless waistband, stretch-friendly without tight pressure marks. 3. Ergonomic 3D U-shaped contour pouch offers ample room, prevents squeezing for all-move comfort. 4. Optimized cutting avoids ride-up and pinching, fits hip curves perfectly during sitting and sports. 5. Disposable design, ideal for travel & business trips.