I bought these but have only worn them once. The fabric is thin but NOT see-through. I imagine they are great for hot yoga or climates warmer than where I live! They are quality leggings. Inseam 30”, waist 13.5” laying flat. Techno-fabric that's breathable and sweat-wicking to keep your skin cool during hot and sweaty workouts. Rated excellent for UPF protection (equivalent to UVB/UVA 40-50+) Luxury USA made brushed fabric made from post-consumer plastic including water bottles. 79% Recycled PET/21% LYCRA® XTRALIFE Chlorine, sun cream and oil resistant, non-pilling Eco-friendly, non-toxic dyeing process that produces fade-free, bleed-free vibrant color with no white on stretching. Machine wash, air dry.