The Six Moon Designs Haven is an ultralight two-person shelter with a double-wall, A-frame-style structure — a trekking-pole-supported silnylon fly over a full-mesh inner tent — splitting its 963 g total weight into a 453 g fly and 510 g inner body, pitchable separately when only rain cover is needed. The 20D silnylon fly and 30D silnylon bathtub floor both carry a 3,000 mm waterproof rating, matching the floor's durability to the canopy rather than using a lighter groundsheet.
Floor space is a compact 2.5 m² for two people, or 1.25 m² per person — tight for two pads side by side — but two vestibules adding 4.9 m² of covered storage bring total usable space to 7.4 m², which changes the livability picture if gear stays in the vestibules. As with most Six Moon Designs shelters, seams need user-applied sealing, guylines are not included, and six stakes are required separately.
A solid option for ultralight backpacking pairs willing to accept a snug floor plan and non-freestanding, trekking-pole pitch in exchange for near-solo-tent weight shared by two.