at first i was shocked that the top sheet was a different pattern than the bottom sheet. i would prefer that they both be identical.. BUT, their is about an inch wide elastic all around the whole fitted sheet, wich fits great, stays in place, doesn't ride off the corners of the matteessm and very adequate sheet. they are harder to put on than most sheets, but once one, they do not move.. LOVE THESE, and want another pair!! well worth the price!