So let me preface this with that fact that we have not used these GForm pads for soccer nor do I personally know anyone who uses these knee pads for soccer. However, my son used these knee pads for BMX racing and they're a great product (all their products are fairly well regarded). Lightweight, slim and protects from scrapes and impacts. They worked great for my son and he didn't even notice them. Cool technology, the soft rubber on the sleeve hardens on impact.
https://g-form.com/knee-pads-mountain-bike-skateboard
Hi, our DD wears the GForm shin guards and loves them. For futsal she wears GForm Knee, Elbow, and compression padded slider w/ tailbone pad. The GForm stuff is really good. Maybe a little excessive, but she says it is comfortable and she feels protected, so I guess that is what matters. We are looking for turf knee sleeves as well as the season is about to start and they have few turf games and she does not want to wear long pants because of the heat, but does not want to wear just shorts w/ sliders. First game is a week away on turf so we need to figure something out.