Vento Knee Pads (1 Pair) Durable and High Abrasion Resistance Fabric Adjustable Bands for Comfortable Wearing Foam Sponge Protection for Hard, Rough, Cold and Wet Surfaces. Increases the Level of Comfort and Protection. Since the ties are elastic, they do not slip. Since it is lightweight, it gives the feeling of not being on your feet. ? Elastic? User Adjustable Ce En14404/Class1