These are lululemon leg warmers.
I received them brand new from another user here and have used them a few times.
They have a heel-less design and cover the entire leg.
The lululemon product tag in the 4th image is from a previous design before the current one.
Also, they were purchased at a正規店 (authorized retailer) and are 100% authentic, not fakes.
There are very minor signs of pilling.
Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.
Good value for the price. The item works as expected and there have been no issues during use. Everything seems to function properly.