Our Ice fishing Tent is made out of tough 300D oxford fabric that keeps the cold out allowing you to fish comfortably. It comfortably holds 4 people with ample fishing room. 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 Feature Made Out Of Tough 300D Oxford Fabric That Keeps The Cold Out Allowing You To Fish Comfortably Waterproof, Minus 30 degree F Frost Resistance Easy To Put Away And Contains A Bag In Which It Fits And Can Be Easily Carried Two layers of the window in oxford and transparent PVC for your hermetic or ventilate needs Total Covered Windows On The Tent Are Detachable Easily Fits 4 People with ample fishing room Specification Material:Oxford and PU Weight:22.4lbs Fibre pole:9.5mm Ground Dimensions:70”(L) X 70”(W) Folded Dimensions:51.6”(L) X 8.3”(W) X 8.3”(H) Overall Dimensions:90”(L) X 90”(W) X 80”(H) Person Capacity:4 Person Frost Resistance:-30 degree F Features: Waterproof, Portable Brand: Costway Assembled Product Weight: 22.4 lbs Manufacturer Part Number: OP3429 Assembled Product Dimensions (L x W x H): 90.00 x 90.00 x 80.00 Inches