XL = Extra Long. Our XL Mosquito Hammock provides same amount of protection as our original, but with an extra 13 inches of length to stretch out and get comfortable! The bigger area creates a much flatter and roomier space to enjoy under the integrated mosquito net. If the coast is clear and you don’t need the mosquito netting, just flip the hammock over and use as a normal hammock. Yukon Outfitters hammocks are made for use on the trail, tailgating, camping, or at home.