HMG UltaMid 2 and Insert
Materials: CF8 Cuben Fiber
- Fully seam sealed
- Waterproof two-way zipper
- Comes with an X-Large CF8 Stuff Sack for storage
- 8 reinforced perimeter tie-outs
- Line locks on all perimeter tie-outs
- 4 center panel tie-outs
- Specially designed cone to prevent deformation when using oddly shaped poles, paddles, sticks or skis
- Dual peak vents that can open and close
- Vents covered with no-see-um netting
- Tie out on cone for hanging the mid from a tree
- Larger than traditional mids
- Equipped with eight 3’ Spectra Core Guy Lines for perimeter tie-outs
- Includes additional 100’ of Spectra Core Guy Lines for center panel tie-outs
- Can be pitched high off the ground or tight to the ground
- Top, center-pole point reinforced with Dyneema® Hardline
- Adjustable shockcord with glovehooks attach corners to shelter
- Vertical two-way zipper running from floor to shelter door with two horizontal zippers running the width of the floor allows for easy exit and entry
- Sewn-in guyline for tying back door panels
- CF11 Cuben Fiber bathtub floor
- Center of floor reinforced with 150d Cuben Fiber for pole contact point
Blister’s Measured Weight:
- UltaMid 2: 602 g (including about 100 g of 100 ft of 2.8 mm Spectra guy-line)
- Insert with Cuben Fiber floor: 600 g
- Total: 1202 grams
MSRP: UltaMid 2: $675
MSRP: Insert: $375
Test Location: Kodiak Island, Alaska
Days tested: 15
Hyperlite Mountain Gear specializes in ultralight gear, and in particular, products made from a strong, ultralight, waterproof material called Cuben Fiber (see below).
In my circle of friends in Alaska, HMG is well known as a producer of backpacks and shelters that are optimized for all types of human-powered wilderness adventures. (For some ideas of these kinds of trips, check out the website of my close friend, Luc Mehl, at thingstolucat.com)
HMG describes the UltaMid 2 as, “small, light, and fast adventures deserve ultralight, durable shelters optimized for the task. We considered your minimalist solo and two-person alpine climbing and super-ultra thru-hiking adventures when we developed the UltaMid 2-person shelter. Made with 100% waterproof Cuben Fiber, this pyramid tent withstands the worst weather conditions, keeping you protected from raging windstorms and heavy snowfall.”
In addition I also tested the UltaMid 2 insert with Cuben Fiber floor which HMG describes as: “our four-wall UltaMid 2 Insert with no-see-um mesh for backcountry multi-sport adventurers who want to keep the bugs at bay. Built to fit into the UltaMids, this product comes with a 100% waterproof, Cuben Fiber bathtub floor that can provide you with significant protection should you be caught in a downpour. And fear not, water from condensation won’t drip, drip, drip on you in the morning; the inserts were designed a bit smaller than the perimeter of the UltaMid, so the netting never touches the walls. This UltaMid 2 Insert would be a great option for small parties of climbers, thru-hikers or backpackers heading to the wettest, buggiest places in the world.”
Over a typical year I spend a lot of nights sleeping in a tent, and most of the time I’m carrying not only my camping equipment and food, but also various other gear including packrafts, whitewater kayaks, skis, or hunting or fishing equipment.
Because I usually carry much of this other extra gear and am often out for extended periods of time, I am always looking for ways to lighten my load without significantly compromising safety and performance. The HMG UltaMid 2 caught my attention as an ultralight shelter that should be able to handle some harsh conditions all year round.
After receiving the UltaMid 2 late this past summer, I spent several trips using it primarily on Kodiak Island, Alaska. Kodiak is a place well known for extremely harsh, wet, cold, and windy weather. My trips around the island this year certainly followed that pattern, and I didn’t have any trouble finding appropriate conditions to test the UltaMid 2.
I’ve done a lot of research about Cuben Fiber, and have had many conversations with friends about their personal experience using very types of outdoor equipment from it. I’ve yet to find a better description of the fabric, its content, history, and application than that available on the HMG site:
“Dyneema® (non-woven) Cuben Fiber: This high-performance, non-woven, rip-stop, composite laminate developed in the 1990s by a nuclear weapons physicist and an aerospace composite engineer. Originally designed for use in world-class sailing, it’s ideal for lightweight and ultralight outdoor gear due to its unmatched strength-to-weight ratio. Technically speaking, Cuben Fiber is a laminated fabric made using patented technologies with unidirectional prepregnated tapes of in-line plasma treated fibers that are spread into mono-filament level films. In more simple terms, Cuben Fiber is made by sandwiching Dyneema® polyethylene fiber filaments a thousandth of an inch thick, in various arrangements between thin outer layers of polyester film. The “sandwich” is then melded together in a high-pressure autoclave.
Cuben Fiber is lightweight, highly durable, and is 50-70% lighter than Kevlar, four times stronger than Kevlar, and allows flex without losing strength. It also weighs less than silnylon, it floats on water, is 100% waterproof and has high chemical and UV resistance.”
I have personal experience using Cuben Fiber packs, a bivy sack, stuff sacks, zippered load cells, and even a wallet—all in addition to the UltaMid 2—and have so far been quite impressed with the material.
The only issue I have noticed, particularly in packs, is that despite the excellent tensile strength and waterproofing, it is still sometimes susceptible to damage from abrasion such as rocks or ski edges, or even high intensity bushwhacking. That said, friends of mine have done battle with some of the fiercest “schwacks” imaginable and have come away with little-to-no pack damage.
Many readers will be familiar with the concept of pyramid (or “mid”) shelters, which have been popular among wilderness travelers for decades. My introduction to them came spending quite a few nights in the original Black Diamond Mega Mid, and more recently, the SilNylon version, the Mega Light, in addition to a handful of others over the years.
Most shelters of this type employ a single pole in the middle of the shelter. Black Diamond includes an adjustable carbon pole with the Mega Light, but most people I know who use this style of shelter utilize ski / trekking poles or paddle shafts to save weight. One advantage of this type of “tent pole” is that it’s very strong and rigid compared to the long, flexible aluminum or carbon poles that we commonly associate with most types of tents. I’ll elaborate more on this below when discussing the weather resilience of the UltaMid.
NEXT: Tie-Down Points, Seam Sealing, Etc.