We, Vanotool, have professional knee pads for working, garden use. Our products have a good market in North America and Europe.
Actually some would require CE certificate (EN 14404:2004+A1:2010 type 1. Performance Level 1), which seems like “passport” in Europe, but some market do not need this. Glad to say some of our knee pads with CE, however, just a part. Above all, the testing cost is much higher to get a CE certificate.
Knee Pad style and size choose:
Garden Knee Pad: One size (fit for 100-120cm waistline people)
Work knee pad: One size (fit for 100-120cm waistline people)
Sport knee pad: S, M, L, XL, XXL (more function)
Tactical knee pad: One size