Hennessy Hammock 4Season Explorer Zip XL, standard rainfly review

The Hennessy 4Season Explorer Zip XL is a hammock-and-insulation arrangement rather than a plain XL body with a seasonal label. Its two-layer bottom holds a foam pad, and the maker describes a packing method that stores the hammock and pad separately from the rainfly. The standard listing is a side-entry Zip XL for users up to 7 feet tall, with a 300-pound hammock limit. It is a potential fit for someone who wants that layer-and-pad workflow, but the exact package and competing weight records need careful checking.

What the two-layer system is designed to do

The product page describes a 70D nylon layer and a 40D nylon layer, with an XL bottom measuring 130 by 59 inches. It explains that an oversize open-cell foam pad sits between the layers. Hennessy estimates that the pad alone may suit many people to about 40°F, and says a space blanket placed under it may extend use below freezing. The product page also mentions extra clothing as a possible addition in colder conditions. These are manufacturer estimates for suggested arrangements, not independent temperature tests or a guarantee for every sleeper, weather event or complete sleep system.

The page's language describes the foam pad as part of the 4Season hammock-and-pad packing arrangement, but the generic “What's Included” list does not itemize the pad or space blanket. Its current product image depicts the hammock with red insulation, and the product page tells owners to pack the hammock and pad together. Before ordering, confirm the exact live offer's box contents—especially the foam pad—and do not assume the space blanket is included merely because the description discusses it. A pad-compatible double layer is not itself a complete sleeping insulation kit.

Rain setup and carry weight

One distinctive maker instruction is to keep the hammock and foam pad in the compression sack while storing the rainfly in the separate SnakeSkins. Hennessy describes pitching the rainfly first in rain, then setting up the hammock beneath it. That sequence can matter when sheltering gear during a wet arrival. The standard product page includes a stock hexagonal fly and free 42-inch webbing straps; the exact package should still be verified because the page also offers larger-fly and longer-strap upgrades.

The 4Season Explorer page lists a packed weight of 5 pounds 8 ounces before the 4-ounce webbing. The manufacturer's comparison chart lists 4 pounds 8 ounces. These are not the same figure, and the material reviewed here does not explain the one-pound difference. A buyer planning around carried mass should ask Hennessy which figure applies to the current M336 package and what contents are included in that weight. Do not report a summed or field-measured weight from these conflicting catalog values.

Size, entry and other published specifications

Hennessy lists the XL for users up to 7 feet tall and the hammock to 300 pounds. The 130-inch lower-fabric dimension converts to about 10 feet 10 inches, while its listed width is 59 inches. Those values meet a 10.5-foot and 59-inch finder threshold; they do not guarantee an individual diagonal lay or tell you the spacing needed between anchors. The side-entry model uses a two-slider #10 YKK zipper, attached 30D no-see-um mesh, ten-foot 1,800-pound-test polyester-core ropes, and 2-inch-by-42-inch tree-hugger webbing. The rope test figure is not a 1,800-pound hammock capacity or full-system rating.

Its body fabric, XL dimensions and nominal load limit resemble the Jungle Explorer XL, but the reason to choose this 4Season package is the foam-pad and storage sequence, not simply the shared two-layer construction. Jungle Explorer uses its own double-bottom pad-retention design and the Double Bubble Pad XL as a separate accessory. Neither model should be assigned a general cold-weather comfort guarantee from its name.

Check the complete plan before purchase

Make a list of body, attached screen, rainfly, ropes, straps, foam pad, any space blanket, sleep-system layers and site anchors. Confirm which pieces are in the selected M336 offer and which are optional. The stock 42-inch Tree Hugger straps may not fit every permitted tree or distance; Hennessy sells longer choices as separate customized configurations, so don't treat their lengths as interchangeable with this standard package. Follow the exact setup instructions, use only suitable permitted anchors, and consider a fallback for a campsite without them.

This is a review of manufacturer material, not a field trial. The current product page and comparison chart disagree about packed weight, and the generic inclusion list does not explicitly itemize the pad or space blanket even though the model description uses them as part of its system. Verify those points, the standard rainfly, included webbing and current limits before relying on a cold-night plan. The 300-pound hammock figure is not a rating for the straps, ropes, anchors or the whole hang.