(this is just my experience, yours might be different) I ordered these June 16, they got here July 28 (so about 6 weeks). There aren’t any loose threads and the material is good (it’s not TOO thick but not really thin either) However, if you were to look REALLY REALLY close then you might be able to see through, just the slightest bit (no one is getting that close to my legs tho, so it’s fine). For reference, I’m 5’4 (5 foot, 4 inches), my legs are 38-39 inches long, my calfs are 14 inches around, my thighs are 25-26 inches around, and the thigh highs/socks go right above my knee. (also I didn’t feel the need to contact the seller, so I don’t know how the seller is communication wise. Also ignore the last 3 photos if you want) ✧༺♡༻✧ Also my thighs are kinda big so when I walk around they kinda roll down, but that’s an easy fix. (And the material is cotton & very stretchy)