Thermal Window Cover for Winter,38" X 62" for Window Insulation for Winter, Oxford Cloth Cotton Layer Thermal Window Cover to Keep Heat, Window Insulation Kit Fits Up to 3 x 5 Ft Window

Perfect, thick and keep all the heat in when placed over a basement window

This does work. It keeps the cold air out during the winter and during the summer it keeps the cool air in my house. I just wish that it wasn't so ugly. It looks like a thick quilt plain dark gray blanket. Wish that they had some kind of a design on it like regular curtains. But overall it works well.

This is a great product! Easy installation, durable, keeps the breeze out.

These kept the wind from blowing in the trailer windows this winter. Fit perfectly. Stayed in place.

Works great easy to install. Works even if it isn't the perfect size for your window. Does need to be as wide as you need it though. Keeps the cold out and I am warmer now.

Easy to install. Doesn’t quite fit my old window, but it was the best I could get. Not the product’s fault for not making one true to my window size!

I have 3 windows next to each other and the size of these covers. They're drafty and old. Very cold floor and windows near them. Since it's in the bedroom going to bathroom, it makes taking a shower a cold task. I can say it has cut down on the draft. My bonus is the blackout effect it gave to my windows. Now sleeping better. They are made well, good thickness. I have not tried to roll them up and down yet. I want to keep them as sticky as possible 😆. Recommend. Hopefully I will get new windows this summer. I need one more but the kept me to just 2

The kids room has cold window & the master bedroom. I bought 2 for kids room to try. This is very thin, its is not thick like the picture. The outside layer is very nice though. I hung it up using just the top velcro for now than lowered the window blinds over it.After hanging 1 up, I was thinking if going to modify by cutting it open & adding insulation or use 2 of them with insulation in the middle added but just hung the 2nd one up in master bedroom where the bed headboard is against a window & gets cold. I will have to see if worth it over the next week.Disappointing how thin it is. If they had a thick version that costs more would be nice.