Headrest
The headrest in this case is a characteristic soft “pillow” located in the area of the back of the head of the seated person and providing additional comfort when sitting. Thus, this feature implies not only the presence of a backrest, but also a rather large height of this backrest — so that the headrest can be fixed high enough. There is similar equipment in all types of tourist furniture equipped with backs — chairs, armchairs (including for fishing) and sun loungers (see "Purpose").
Weight
The total weight of a piece of furniture. This parameter has a dual meaning. On the one hand, a lot of weight creates inconvenience in carrying, and such products are poorly suited for transportation over long distances. On the other hand, more massive structures are more stable, and when using the same materials, usually, they are also more durable than light ones.
Weight, usually, is indicated without taking into account the cover (see above) — this is quite justified, given that the covers are usually made of soft and light materials and their effect on the weight of the furniture itself is almost imperceptible.