Otter Outdoors Vortex PRO Monster Lodge Hub Ice Fishing Shelter - The two hub design provides ample room. And with the Thermaltec 600 Denier fabric layer system the Monster Lodge is sure to keep thing warm on the inside and the wind outside. Patented Otter THERMALTEC 600 Denier Fabric Layer System Triple Layer Shell Provides the Perfect Combo of Durability, Warmth & Reduced Condensation Extreme Duty 11 MM Cobalt Poles Reinforced Corners Wide Base for Maximum Fishing Area Front Dual Coil Zippered Entry Door Combination Daylight/Lookout Removable TPU Windows with Insulated Covers Interior Wide Bottom Storage Pockets and Exterior Tie-Down Strap Pockets Interior Rod/Tool Holders Interior Overhead Cargo Storage Net Propane Hose Port with Hook and Loop Flap Removable License Holder Exclusive Ice-Lock Anchoring System Anchor Tie-Down Kit HD Nylon Wind Anchor Straps with Adjustable Quick Release Buckles Exclusive Nylon Packing Strap with High Compression Quick Release Buckle 900 Denier Oversized Carry Bag (Poly-Lined for Added Protection & Quicker Packing