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Lightning 2 FL

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Shaving 10oz off of the 2014 UL build the new FL Lightning is still a freestanding, fully-featured shelter with maximum comfort at the minimum weight. It carries the torch as the most livable and functional tent in its weight class.


Pitching Instructions

Tent User Manual

Guyline Line-Lok® Cleat Instructions


Number of Poles:
3 Poles Joined Together by 2 Swivel Hubs to Create a Single Frame
Pole Type:
Pole Diameter:
9.3 mm
Pole Set Weight:
14 oz. / 0.40 kg
Fly Fabric:
20D Polyester Ripstop, Silicone/1200mm PE, FR
Floor Fabric:
30D Nylon Ripstop, WR/3000mm PE, FR
Body Fabric:
15D Nylon No-See-Um Ultralight Mesh

Tech Specs

Minimum Weight:
2 lbs 14 oz. / 1.28 kg (Tent & poles only)
Packaged Weight:
3 lbs 5 oz. / 1.47 kg
Number of Doors:
Number of Gear Closets:
Gear Storage Area:
5.4 + 5.4 ft2 / 0.38 + 0.38 m2
Interior Area:
30.5 ft2 / 2.83 m2
Internal Peak Height:
42.5 in. / 108 cm
Awning Height:
36 in. / 91 cm
Awning Overhang:
15 in. / 38 cm
86 in. / 218 cm
Front: 56 in. / 132.1 cm
Rear: 46 in. / 116.8 cm
 Sold Separately 
Number of guylines:
Stake Quantity:
Tent Storage Bag:
Length: 15 in. / 38.1 cm
Diameter: 4 in. / 10 cm
Pole Storage Bag:
Length: 19 in. / 48.3 cm
Width: 4 in. / 10.16 cm 
Tent Stake Storage Bag:
Length: 8 in. / 29.9 cm
Width: 4 in. / 10.16 cm
Backcountry Edge:
Kittery Trading Post:
Capacity: 2 Person
    • Sierra Designs - Lightning 2
    • Sierra Designs: DAC Wind Tunnel Tent Test

    360 Spin

    Click and Drag to Rotate

    Product Reviews


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    1. Customer Review

      This is a fantastic lightweight tent that is ridiculous quick and easy to set up! I have been using this tent when training for and competing in a mountain marathon where me and my team mate carried all our gear during a 55-mile long race, climbing 20,000 vertical feet of elevation in the very north of Sweden. My Lightning 2 FL worked great and we finished on 2nd place! I don't compromise with quality when choosing gear and I train all year around with this tent. It kept me dry during a 48h heavy rain in the Austrian alps and saved me up in the Norwegian mountains when my backpack was based on a forecast for sun and blue sky that instead turned into very heavy wind and snow. Another cool feature with this tent is the innovative design enabling an "undertheawning" view that is unlike any other tent. One of my most memorable mornings during 2015 was waking up in the tent in Lofoten (Norway) with a stunning view of the sun setting over a still ocean covered by super steep mountains. There are also several clever features as e.g. you cant lose a tent pole because they are attached as a "spine" for the tent, tent pegs being easy to grab from the ground due to small string attached and the bag for the tent being split into two parts if you want to share the weight while hiking. The lightning 2 FL is well thought through and very enjoyable tent that I definitely recommend! on Feb 16th 2016

    2. Customer Review

      This review is about the UL version. I have had the tent for a year now, in that time I have used it over a dozen times. I love this tent. It's very fast to setup because of the hybrid tent/rain fly design. I go camping a lot with friends who have traditional tent designs and I am always setup and ready in half the time. The large door and awning are much better for backpack camping then a vestibule. I have spent several afternoons inside the tent, with the door mesh open, reading a book. The open airy feel is fantastic. The gear closets are just big enough for the average weekend backpack, I would be surprised if it could fit a 55-60L inside. I place my 35L bag and shoes in there without a problem. I was worried the interior space might be cramped for two grown men, but I have shared this tent with my buddy and we were both surprised at how much room we had, never once did we touch each other during the night. Having one door might be the only negative this has over a traditional tent, but the sacrifice is understandable to save weight. It isn't that big an issue since the door is large and easy to get in and out of. My friend got out one morning to go to the bathroom and I never woke up. My only complaint is the tent cannot be randomly stuffed into the storage bag because of the plastic rods used support the awning and top of the tent. They help to increase the awning width and the vertical area inside the tent, but you have to pack up the tent in a specific way to roll the rods into the fabric. After 1 to 2 pack downs it's not an issues, it just means the tent can't be stuffed into a backpack willie-nillie style. The storage sack is more than adequate in size for the tent, it's never an issue getting it back in. I have not had any issues with the quality of the materials of the fabrication. I do have the footprint, but I only use that for car camping trips. I had one night of use where it rained, no moisture came into the tent. I have woken up in the morning with very light condensation on the inside of the tent, but nothing more than I would expect from any other tent, and nothing I would have been concerned with. Overall, a great tent which I highly recommend. I continue to enjoy the innovations and out-of-the-box thinking Sierra Designs does. Keep up the good work. on Sep 1st 2015

    3. Customer Review

      Just got back from a 4 night backpacking hunting trip and had to sit down to write a review of the Lightning 2 FL. It was all that was promised, and more. The innovative pole and click system allows for very quick setup. I did not get a chance to practice-pitch this tent before my first night, but I was pleasantly surprised at how easy it went together. I was able to set the tent up in 5 minutes, in the dark no less! The extremely large "D" style front door makes it very easy to get in and out of. Next, the extremely large and spacious interior. I am large 6'3" and 220lbs. I am broad shouldered and am used to 2 person tents feeling like 1.5 person tents. Though I suspect that one large and one small adult would fit width wise and still have wiggle room. The ceiling height is ample. I could kneel upright and had headroom to spare. The interior gear-hooks came in handy to clip my lantern to at night. But the most note worthly thing to mention is the big V, Ventilation! This thing is awesome at allowing moisture to escape while somehow keeping occupants warm. We hit some nights in the low 40s' and despite reaching a temperature well below due point, the tent only had the smallest amount of condensation in the morning. And after opening up the front vent on the front "D" door, what little condensation formed would dissipate in minutes. In fact, today we had a storm roll in. It rained on us for 2 hours before we broke down camp. My hunting partner's Big Agnes tent had so much condensation around the gable edges that water was actually dripping onto their gear and floor. I had the vent open on the front door and had zero conedensation in the tent. That's right ZERO!! condensation in the middle of an afternoon rainstorm. Nothing but glowing reviews for this company and for the Lightning 2 FL. SD hit another one right out of the park. on Aug 30th 2015

    4. Customer Review

      Light weight, super fast pitch and roomier than I expected. The side-accessable gear garages are brilliant. With the two gear garages staked out, the inside has an airy feel of being a much bigger tent. Be careful to not let the wind blow this tent across abrasive surfaces. The light fabric is strong but not abrasion resistant so treat it nicely. on Aug 2nd 2015

    5. Customer Review

      Really enjoy this tent. First SD tent and love the really well thought out design. The integrated rainfly makes for such an easy set up. Throw in the pre-connected poles configuration, and setup was a breeze. Quality materials. I did feel that the floor was a little thin to be used without a footprint as SD suggest, but maybe that's just me. We had rain overnight and the garages performed admirably and kept everything dry. I do with the doors into the garages were a little larger, I often felt like a mad scientist trying to manipulate hazardous materials through a protective barrier as I tried to get stuff out of my pack in the morning. But it's not that bad. Accessing them via the outside is simple using the line locks. I went ahead a used the included guy-lines and man, that thing it stable. Over kill for our NM trip. Great tent, super light, plenty of room for two people (a little tight, but manageable for my wife and myself), and well made. Very happy with the purchase... on Jul 27th 2015

    6. Customer Review

      Just got back from a trip on the JMT and this tent performed AMAZING! Through rain, hail, below freezing, to warm sunny days... Loved having 2 separate gear boxes! We ditched the stuff sacks and took only 4 stakes for weight. I would definitely recommend this tent! on Jul 8th 2015

    7. Customer Review

      This is a great tent! It's so light and packable and the attached rain fly makes set up really quick. I just camped through a storm in it and it did great. Would definitely recommend on Jun 15th 2015

    8. Customer Review

      The Lightening 2 FL is a terrific 2-person tent. Fairly easy and quick to set up, acceptable ventilation, great views from the large door, plenty of headroom, more than adequate space for two real adults. Well thought out in just about every way. At first the yellow color was off-putting, but in use it actually adds a very cheerful and peaceful vibe to the interior of the tent. I really like it. I have one suggestion for the folks at Sierra Designs to make a great tent even better: Modify the gear closets slightly so that they can be rolled up and secured to increase ventilation and visibility. This would be a HUGE plus for hot nights! It would increase the versatility of the tent and shouldn't add too much weight or complexity to implement. on Jun 9th 2015

    9. Customer Review

      Did a "test drive" with it last weekend and it passed with flying colors. Very simple to setup and the fact that there is no fly to fight with makes it that much easier. Although it did not rain on us, we could see the big advantage of not having to get rain inside the tent. We really want to conserve this tent, so we invested in the SD footprint as well. on May 31st 2015

    10. Customer Review

      Love it! Recommend. on May 13th 2015

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