Following much research settled on the levesque 2x for my Collies - they are made of a tough material and whilst not inexpensive do reflect value for money - they are sufficiently robust to withstand my dogs pawing the cushions around to make their beds - the upright sides seem almost non collapsable which is a plus over other past beds. a cautionary word - whilst the large size is I would say adequate in size for my 26kg pets I should have perhaps opted for the extra large to allow a little more "spread out" room - but that was my error  cos they are true to measurement but precisely so. I would recommend this purchase as an excellent product