Designed with guidance and testing from professional hunters and anglers, the Spike is a truly minimalist shelter that will get you further off the beaten path. Its floorless, trekking pole-supported design is meant to shed every ounce possible and resulting in a 2-person shelter that is less than two pounds and packs incredibly small. Silicone-treated fabrics increase strength, durability, and waterproofness.The large entry door on the 2-person can be supported by trekking or tarp poles (not included) to create an awning, or can be securely zipped shut for a waterproof seal. Spikes silicone-treated fabric is free from toxic flame retardants.