Ultimate Direction SJ Ultra

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Retailers' Descriptions

Here's what other sites are saying:

Updated with more accessible storage at almost half the weight of previous models, the Sj Ultra Hydration Vest is a trail-runner's best friend for self-supported long runs or ultras.


Scott Jurek designed the Ultimate Direction SJ Ultra Vest to be the perfect all-around product for everyday use or high-end racing. Comfort and performance are outstanding due to it's technically advanced design and features.

- Mountain Gear

Whether you're just going out for a run after work or racing, this Ultimate Direction SJ Ultra Hydration Vest has you covered with plenty of water and gear storage and an exceptional fit. Scott Jurek designed the SJ Ultra Vest to be the perfect all-around product for everyday use or high-end racing. Comfort and performance are outstanding due to it's technically advanced design and features. The SJ Ultra Vest 2.0 adjusts to fit a wider size range with the addition of side adjustment straps. Version 2.0 is also stronger and more durable with a 340gm Power Mesh, Silnylon 66 for increased seam strength, and all pockets have been reinforced with edge banding for better gear retention. An added size zipper improves access to an optional reservoir. Scott Jurek really understands what runners need, and that is exactly what he designed. Features (Front):. Smart Phone compatible pouches. Bottle holsters tighten to carry camera, etc. Gel or bar pouches. Electrolyte or valuables pockets. Fully adjustable sternum straps. Emergency whistle. Super soft VelvetexTM no-chafe binding. Features (Back):. Micro adjustment straps for better fit. Quick reservoir access zipper. Internal bungee to secure gear or reservoir. Secure lat pockets, with stretch panel behind. Two zippered compartments. Trekking pole and Ice Axe loops. Extra tall mesh pocket to keep items secure. Accommodates a 70 oz. reservoir (sold separately). Sizing At Chest (Unisex):. SM: 23 - 33 in. / 58 - 84 cm. MD: 31 - 39 in. / 79 - 99 cm. LG: 36 - 44 in. / 91 - 112 cm. New adjustment straps fine tune the fit. Measure wearing the clothes you intend to wear. A vest full of gear will fit smaller. Specs:. Volume Capacity: 427 in3 / 7L. Fluid Capacity: 2 x 20 oz bottles / 2 x 591 mL (plus optional reservoir). Weight: 11 oz. (16.5 oz. with bottles) / 310 g (468 g with bottles). Height: 12 in. / 30 cm. Width: 9 in. / 23 cm. Depth: 2.5 in. / 6 cm. Materials/Design:. Silnylon 66: Impregnating nylon with Silicon and Polyurethane creates this permanently waterproof fabric, and also substantially increases its seam and tear strength. Hex Mesh: The Hex Mesh vest structure is completely breathable, extremely strong, and lightweight. Its inability to absorb moisture results in a drier, more comfortable wear. Power Mesh: All pockets are strong and stretchy, made with heavy duty 340gm Power Mesh stretch fabric so the vest expands as you need it to. Available Color(s): Gunmetal

- Tahoe Mountain Sports

Run like ultramarathoner Scott Jurek, or at least stay super-hydrated, with the Ultimate Direction SJ Ultra Hydration Vest. Inherently stable, the vest design eliminates bounce; and it holds water bottles in front for easy quantity checks and access and accommodates a reservoir in back for endurance runs. Bombproof, featherweight Cuben fiber and power mesh construction keeps everything together in a lean, low-profile package made for speed. A total volume of about 550 cubic inches means you can take along a light layer, gels, or extra hydration on those epic outings.

- Backcountry.com

The SJ Ultra Vest is the result of collaboration with Scott Jurek, the world's most dominant ultra runner. Weighing in at 7.5 ounces (13 with bottles) and offering 9.2 L of storage space, the SJ has the best weight-to-capacity ratio of any hydration pack on the market.World-renowned ultra-runner Scott Jurek designed the SJ Ultra Vest to be the the ultimate pack for any occasion. Featuring the best volume to weight ratio of any pack ever made, the 7.5 ounce SJ Ultra Vest can carry a half-day of gels or bars in the easily accessible front pockets, along with a unique expandable or compressible main compartment utilizing Cuben-Fiber, for a total capacity of an amazing 9.2 liters. Options to carry trekking poles and an ice axe complete the package.Features (Front):Smart phone compatible pouches (2) Bottle holsters tighten to carry camera, ect. Gel or bar pouches (4) Electrolyte or valuables pocket (2) Fully adjustable Sternum Straps (2) Emergency whistle Features (Back): Cuben Fiber bellows for large or small loads Secure Lat Pockets, with full pocket behind (2) Two sizes main compartments Hex Mesh for maximum breathability Trekking pole (2) and Ice Axe loop (1)Specs:Volume Capacity: 47 in.3 / 9.2L Fluid Capacity: 2 x 20 oz. bottles / 2 x 591 mL Weight: 7.5 oz. (13 oz. with bottles) / 212 g (368 g with bottles) Height: 12 in. / 30 cm Width: 9 in. / 23 cm Depth: 2.5 in. / 6 cm Sizing At Chest (Unisex): SM: 25 - 31 in. / 63.5 - 78.7 cm MD: 31 - 37 in. / 78.7 - 94 cm LG: 37 - 43 in. / 94 - 109.2 cmMaterials/Design:Cuben Fiber: Used for the sails of America's Cup racing yachts, this non-woven fabric is 15 times stronger than steel and 40% stronger than Aramid fibers, and is extremely resistant to moisture, UV, and chemicals Hex Mesh: The structure of the vest is totally breathable, while also being extremely strong, lightweight, and will not absorb moisture. Power Mesh: All pockets and super stretchy, so small loads won't bounce and the vest expands as you need it to.

- Mountains Plus