Under Armour Threadborne Slingflex

9.4
9.4 score
[Editors rating (9.2) + Users rating (10.0)] / 2 = (WalkJogRun) score (9.4)/10


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Editor rating: 9.2 / 10
User's rating: based on 1 user ratings
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Under Armour Threadborne Slingflex Review Facts

The Under Armour Threadborne Slingflex is designed in such a way a to allow the shoe to provide the wearer with both smooth transitions and comfort during use. The materials placed throughout the shoe flex with the wearer’s foot and ensures that the wearer experiences the shock absorbent nature of the shoe in it’s entirety; the shoe utilizes UA’s charged cushioning material and allows the wearer of the shoe to have improved takeoffs while the shoe is being worn. The design of the shoe also allows the shoe to have a lightweight feel while on foot, which also allows the shoe to give the wearer a comfortable feel.

Editor's Pros & Cons
Pros
  • Comfortable
  • Lightweight
  • Supportive
  • Flexible
Cons
  • Uncomfortable without socks
  • Narrow toe box
Outsole

Outsole

The outsole of the shoe utilizes a combination of both hardened and soft rubber. The material in the sole allows the shoe to provide the wearer with a decent level of traction and grip while on foot. The hardened rubber in the sole unit gives the wearer the abrasion resistance that is necessary for the shoe to function well. There are also flex grooves placed throughout the sole of the shoe that enables the shoe to provide the wearer with a higher level of grip during use. This grip translates into a high degree of functionality for the wearer of the shoe as well; the material also allows the shoe to return a bit of the energy that is taken into the shoe while in use.
Midsole

Midsole

The midsole of the shoe provides the wearer of the shoe with a decent level of cushioning due to the charged cushioning that was used throughout the shoe’s design. The charged cushioning takes in a decent amount of the energy from the wearer of the shoe and enhances the overall comfort experienced by them; this results in a sense of responsiveness for the wearer of the shoe as well. The shoe also features a Micro G sock liner gives the wearer of the shoe a moisture wicking experience as well as adds a decent level of comfort for the wearer of the shoe.
Upper

Upper

The upper of the shoe is surprisingly minimal and lacks many of the coverings that are traditional with running shoes. The Sling flex features a mesh design that allows the shoe to provide the wearer with a pretty good level of airflow as well range of motion; mesh is known for being a bel to conform to the shape and size of the wearer’s foot as well as give them the level of comfort that is necessary for the shoe to provide the wearer with a sense of stability while in use. The Threadborne Dyneema is both relatively lightweight as well as durable which allows the shoe to give the wearer a sense of security in the fact that the shoe won’t require constant replacing due to flimsiness.
Weight

Weight

The cushioning and other materials that are present in this shoe’s design allow it to retain the lightweight feel that it does. Overall, the Sling flex weighs an astonishing 9.8 oz. This is primarily due to the minimal design that the shoe was imbued with and the lightweight materials that are present throughout the design of the shoe. The upper of the shoe is fitted with a mesh design that allows the shoe to blend with the needs of the wearer and does a great job of keeping the weight of the overall shoe down. The charged cushioning in the midsole of the shoe and the lightweight rubber material in the outsole also work to this effect because the minimal cut of them both that is present on the shoe.
Breathability

Breathability

The upper of the Slingflex is one that promotes air flow for the wearer of the shoe. The upper of the shoe is designed primarily from a mesh material; mesh is known for it’s porousness and ability to provide a decent level of circulation for the wearer’s foot during wear. This air circulation results in less sweat being accumulated throughout the shoe and more comfort being provided to the wearer’s foot during use. This is augmented by the design of the tongue of the shoe being created primarily from the mesh material as well; the tongue being made of mesh allows for a higher level of air flow to be achieved by the shoe.
Comfort

Comfort

The materials used throughout the design of the Slingflex allow for a high level of comfort to be achieved by the wearer of the shoe. The upper of the shoe utilizes UA Dyneema material; this material conforms rather easily to the shape of the wearer's foot and allows the shoe to be seamless, resulting in very little irritation to be caused by the wearing of the shoe. The midsole of the shoe and the charged cushioning used throughout allows the shoe to do its job even better by conforming to the shape and size of the wearer’s foot and the curves that are found throughout. The air flow provided by the upper of the shoe also works to provide the wearer of the shoe with an added level of comfort during wear.
Style

Style

The slim cut of the Slingflex allows the shoe to provide the wearer with a decent level of aesthetic appeal while on foot. The shoe features a rather minimal design and comes in a decent amount of colors which allows the wearer to have a bit of versatility in their shoe choice. On top of this, the shoe is also color-blocked which is something that adds to the aesthetic appeal of this shoe. Another thing to note is the fact that the shoe has a lifestyle effect; the shoe appears to be able to be worn in a variety of places outside of the typical athletic environment, something that works tremendously to the wearer’s advantage.
Durability

Durability

The upper of the shoe is designed to be able to handle a very high level of stress. The Dyneema material used throughout the shoe’s design allows it to provide the wearer of the shoe with high-level longevity due to the nature of the material; the material handles very well and can handle the roads that it was designed for with very little effort. The sole unit of the shoe is also designed to provide the wearer of the shoe with a decent level of longevity; the shoe incorporates a double layering of charged cushioning for the midsole and the hardened rubber for the outsole. The combination of these materials in the shoe allows it to give the wearer the sense of longevity for the shoe to provide the wearer with several hundred miles of wear with little to no wear.
Protection

Protection

The Slingflex does it’s best to provide the wearer of the shoe with a decent level of protection during wear. The sole unit of the shoe is rather impact resistant and provides the wearer with a decent level of layering; this is primarily due to the shoe’s incorporation of the charged cushioning and the outsole unit’s use of hardened rubber. The shoe also features a Micro G outliner that allows it to give the wearer of the shoe a decent level of cushioning and as a result, impact protection due while the shoe is in use. The upper of the shoe is designed primarily from Dyneema and protects the wearer’s foot from feeling the effects of the harsh weather conditions rather well.
Responsiveness

Responsiveness

The materials used throughout the Slingflex’s design, mainly the upper, allow the shoe to provide the wearer with a decent level of responsiveness during wear. The sole unit of the shoe is designed from a combination of charged cushioning and hardened rubber. The charged cushioning reacts to the shape of the wearer’s foot rather easily and provides the wearer of the shoe with decent transitions during their time in the shoe. Also, to this effect, the outsole of the shoe transitions rather well and allows the wearer of the shoe to have a decent level of responsiveness during wear primarily because of it’s thin cut and ability to flex.
Support

Support

The midsole of the Slingflex is designed primarily from Under Armour’s charged cushioning; this material provides a cushioning effect and allows the wearer of the shoe to have a decent level of comfort during their time in the shoe. The cushioning effect provided by the shoe allows for a decent level of support to be present in the shoe’s design. Also, to this effect, there is a decent level of the cushioning in the heel of the shoe which allows it to provide support for the heel portion of the wearer’s foot. The upper of the shoe also fits rather snugly and provides support for the outer curves of the wearer’s foot.
Terrain

Terrain

The design of the Sling flex is one of a shoe that is meant for use primarily on level terrains such as roads. The outsole of the shoe is designed from hardened rubber and is relatively flat allowing the shoe to get a decent grip on the uniform road terrains; the design of the shoe’s outsole wouldn’t work very well on a terrain that isn’t uniform because of this. The upper of the shoe while being extremely durable wouldn’t work very well on other, more strenuous terrains such as trails and the like.
Price

Price

The Slingflex falls into the midrange category in terms of price. The materials used throughout the shoe’s design and the technologies present allow the shoe to provide the wearer with a decent level of functionality during use that translates into a high level of value being provided to the wearer of the shoe. On top of this, the design of the shoe is one that is extremely aesthetically appealing and allows the shoe to have a certain level of versatility that is unmatched by other shoes of it’s class.
Traction

Traction

The grip provided by the Slingflex goes above and beyond the needs of the typical wearer when used on the terrain that the shoe is designed for use on. The shoe incorporates a hardened rubber material into its outsole that allows the shoe to function on both wet and dry road surfaces; this, when coupled with the patterning that is present on the outsole of the shoe gives the wearer a bit of security in their movements during use.
Flexibility

Flexibility

The materials used throughout the Slingflex’s design allows the shoe to flex rather easily during use. The upper of the shoe bends to the will of the wearer due to its Dyneema/Thread borne makeup; these materials, when used in tandem, allow the shoe to have a superior level of flexibility while in use. The sole unit also has a thin cut of the materials and various flex grooves paced throughout that allows the shoe to flex rather easily; this allows the wearer to get superior footing while the shoe is on their foot.
Stability

Stability

The design of the Slingflex is rather minimal, this is a fact. But, UA does their best to give the shoe a few features that enhanced the shoe’s ability to provide the wearer with a decent level of stability during use. The double layering of the charged cushioning in the midsole of the shoe and the hardened rubber used throughout gives the shoe the ability to prevent over pronation (just a little bit) and give the wearer a bit of security in their movements while the shoe is on foot.
Drop

Drop

The drop on the Slingflex is nothing special (about average). The heel-to-toe ratio on the Sling flex is about 10mm. Most shoes with a drop of this size would experience a slight decrease in the transitioning ability and comfort provided by the shoe; the Slingflex’s use of charged cushioning helpsprevent that effect though.
Key Features

Key Features

• Charged Cushioning
• Dyneema Knit
• Threadbrorne upper
• Heel counter
• Micro G sock liner

Verdict

The Slingflex provides the wearer with a decent level of functionality during use. The shoe incorporates several materials and technologies into it’s design that warrant the midrange price that it has and even does its job to give the shoe an added level of value during use. The only thing that is remotely bad about the shoe is the drop and even that does very little to take away from the feel of the shoe overall.