Bought for the Prolite Plus Sleeping Pad size Large & it fit very well. I was disappointed that the colors in the sheet I received look nothing like the picture (Stripe) that I ordered. I received a striped sheet that was very green hued, according to the picture it should have more brown & beige hues. I added a picture of the stuff sack (which is exactly what the pattern & color of the sheet is, just smaller) so you can see for yourself the difference between the advertised picture & what you will receive. The function was perfect, just disappointed in the color. The sheet is essential & kept my pad perfectly clean.