I bought some leggins for running, cycling, stretching… for winter (sale) and summer.

The summer ones have some translucent bits on the back side of both knees.

There are other summer leggings, completely closed from the same brand that I didn’t buy because to me those bits are well placed to get rid of moisture, and are more expensive than the completely closed ones. Maybe the seller used my naivete to convince me to buy the ones with translucent bits?

So, fashion or function? because to me the completely closed ones are more fashionable.