This is a ice fishing tent which is made out of tough 300D oxford fabric that keeps the cold out allowing you to fish comfortably.
It comfortably holds 3 people with ample fishing room. It has two layers of the window in oxford and transparent PVC. If you want to be hermetic just install this two layers. If you want to allow light in but keep the air out just install the transparent PVC one. But if you need to ventilate just detach the windows. Besides portable design well fits into a bag for easy carrying on your back.
If you are looking for such aice fishing tent please don't hesitate to buy one!