There are situations in which a worker may be accidentally exposed to surface cuts or abrasion.
There are also repetitive situations (particularly in working while kneeling) which lead to a chronic disease such as bursitis of the knee (inflammation of the knee).
One of the means of combating such risks is to wear EN 340 PPE clothing.
Directive 89/686/EEC art. 3.3: Protection against physical aggressions such as friction, pricks and bites
"The materials constituting personal protective equipment designed for the protection of the body against superficial mechanical aggressions such as friction, pricks, cuts and bites must be such that this personal protective equipment presents resistance to abrasion, piercing and cutting appropriate to the foreseeable conditions of use."
Elis offers a range providing answer to these two risks (category 1 PPE) consisting of a relatively thick and solid fabric. The trousers in this range may be equipped or not with foam pads to combat the risk of bursitis of the knee.