WHY Hellosock? 1) High Quality Criterias: AQL 1.0 500prs Critical 0 Major 0 Minor 1. 2) Fitting Test for Each Size and Lot, Set Your Feet in Flexible and Comfortable. 3) Long staple, less pilling, most soft and Moisture wicking. 4) LYCRA® Elastane for Long Stable Grabbing on Your Heel and Feet, but Without Uncomfortable Impression. 5) Without or Minor Limited Halmful Substances, Materials Tested Based on Oeko-tex Standard 100. PS: Our product pictures are real and shot by professionals. However, due to differences in computer monitors display, there can be slightly color variations between the actual product and your screen.