Otter THERMALTEC 600 Denier Fabric Layer System is a Light Blocking/Wind Stopping Outer Shell with a Quilted Thermal Inner Shell. Triple Layer Shell Provides the Perfect Combo of Durability, Warmth & Reduced Condensation. Extreme Duty 11 MM 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.