The Sea to Summit Sentinel XP3 proves the biggest tent in the family doesn't give up any of the storm integrity that defines the line. The Expedition Grade Floor still carries its 25,000mm rating and the same 50mph wind stability holds at this footprint, so a group of three gets the identical weather protection a solo XP1 camper relies on. A 47. 2in peak height, the tallest in the family, turns 39. 83ft^2 of floor space into genuine standing room instead of a crouch-and-shuffle interior. Twin vestibules add 21. 7ft^2 of covered storage, enough for three people's packs and wet gear without anyone tracking mud across the sleeping area. The same fly-first pitch and dry takedown keep the inner tent protected through setup, no matter how many hands are helping. What Our Gearhead(R) Experts Are Saying:"Three of us stood up at once to change out of wet layers and nobody had to duck or bend at the waist to do it. The wind picked up hard on the second night and the guylines held the whole shape steady while we sorted gear in the vestibules."