Sea to Summit’s Arlo TR1 Is a Fantastic Ultralight Tent


It is affordable to count on just a few teething issues with an organization’s new product, much more so when it is a class the model hasn’t ventured into earlier than. That is what I anticipated once I first heard about Sea to Summit’s new ultralight tents: the freestanding Telos and the marginally cheaper, semi-freestanding Alto. However the firm, which generally makes outside stuff sacks, sleeping pads, and tenting cookware, got here proper out of the gate with among the greatest tents in the marketplace.

I examined the Alto TR1, however each of those are high-end, light-weight tents aimed toward backpackers keen to pay a premium to trim weight from their hundreds and those that do not thoughts being gentler on their gear than automotive campers.

Three-Season Residence

{Photograph}: Sea to Summit

At 33 ounces, the one-person Alto TR1 is among the absolute lightest double-wall tents. It is a three-season tent, so it is appropriate for spring, summer time, and fall circumstances. The internal wall is made largely of mesh, so you’ll be able to hold the door zipped shut in heat climate to maintain out the bugs and nonetheless stop the inside from getting stuffy.


Above the sleeper’s head there’s a big vent within the outer wall that may be propped open or closed. For balmy nights, it did job of ventilating the tent, although bugs cherished to crawl and fly in there and roam round between the internal and outer partitions of the tent. They could not get contained in the precise tent, for the reason that internal wall was nonetheless sealed up, so it did not current a lot of an issue past seeing a bunch of gnats hanging over me within the mornings. I might have appreciated a mesh panel over the vent opening to forestall this.

The TR1 is not the one Alto tent. There’s additionally the Alto TR1 Plus, which is what’s known as a “three-season plus” tent. It provides 4 ounces and does away with a lot of the mesh on the internal wall to take care of colder temperatures. You may also discover bigger, two-person variations: the TR2 and TR2 Plus.

Standing Tall

{Photograph}: Sea to Summit

Being a semi-freestanding tent, it is attainable to largely arrange the TR1 with out pulling out the guylines and staking them down. Largely. It’s going to maintain its basic form, however you will must stake out sure corners of the tent to maximise inside area.


I introduced the Alto TR1 to Hawaii on hikes alongside the Kalalau Path on the island of Kauai and the Muliwai Path on the island of Hawaii, in any other case referred to as the Large Island. In each spots, I arrange camp proper alongside the water on the north coasts and was handled to, at instances, ferocious winds and all-night storms.

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