The Adidas Adizero Boston Boost 5 is the fifth revision to this lightweight trainer/racer. Slightly lighter, wider, and featuring a thinner midsole than its predecessor, this shoe is for those who like taking their run on the open road, but also like a appreciate cushioning in the heel. Named for the Boston Marathon, this shoe is meant for speed and distance. Runners liked the overall fit of the shoe and had few complaints about its performance. The Boost foam technology gives the shoe a springy feel which can really be felt at fast speeds. Consider this shoe if you’re in the market for a marathon trainer or just a comfortable and durable running shoe.
The heel area of the shoe is constructed of Adidas’ proprietary AdiWear rubber compound, which offers durability and a confident grip. The forefoot is put together with rubber from Continental. Continental produced rubber is also very durable and can handle wet and slippery surfaces. The use of two different types of rubber in the outsole makes the heel much more aggressive and durable, providing more bounce and flexibility. This translates into a smooth heel-to-toe transition with exceptional surface control
The midsole uses a combination of materials. Standard ethylene vinyl acetate (EVA) and Adidas’ renowned Boost foam are used to make a responsive midsole platform. Boost foam is constructed of thermoplastic polyurethane pellets which are all bonded together. They rebound back from compression quickly. The foam is resistant to different temperatures, keeping them from becoming stiff in cold weather or spongy on hot days. The Boost material provides great shock absorption and rebound. A lot of runners commented on the lightness of the shoe and springy feeling that allowed them to lift their foot with ease. A removable EVA sockliner adds a bit more cushioning as well.
Located in the midfoot area of the midsole is what Adidas calls their Torsion System. This “system” is a wishbone shaped thermoplastic protective plate which allows the forefoot and midfoot to move independently. This motion lessens the strain on the arch of the foot. The Torsion System also provides good arch support and helps with the runner’s stride through the gait cycle. Runners prone to plantar fasciitis
said the Torsion System helped ease the pain in the arch of their foot which allowed them to continue to run.
The upper of the shoe is comprised of an open, net-like mesh material. The upper offers excellent airflow into and out of the shoe to keep the feet dry. If water enters the shoe, it will exit just as quickly. A Coolever mesh lining in the interior of the shoe has good moisture-wicking properties which also keeps the foot dry and cool. Synthetic suede overlays on the sides of the shoe are stitched to the upper and work in conjunction with the lacing system to support the foot and keep it in place. A suede toe guard gives protection and support to the front of the shoe. Heavier material and padding in the back of the shoe keeps the heel aligned with the rest of the foot. The tongue is sufficiently padded to relieve the pressure of the laces across the top of the foot. Peek under the tongue on the left shoe and you will find a “Boston Runs As One” reminder from the Boston bombings.
Weighing in at 8.3 oz for men (size 9) and 7.1 oz for women (size 7), the Boston Boost 5 is slightly lighter than its predecessor. The use of lightweight rubber in the midsole and outsole help keep this highly cushioned shoe
from slowing the runner down. Most runners commented on the lightweight nature of the shoe which they said wrapped around their foot for a very comfortable fit.
This shoe's upper offers very good breathability. The open mesh material dries and allows excellent airflow into and out of the shoe. The overlays on this shoe are rather heavy compared to the upper but do not interfere with airflow into the shoe. A wide toe box helps keep fresh air circulating around the feet. Runners complimented the breathability of this shoe stating their feet were only slightly warm, even after long runs. Despite the wide holes in the upper, there were no reports of small pebbles or dust getting inside the shoe.
Aside from reports that the shoe runs small (you’ll want to size up), this shoe gets high praise for its comfort. The midsole is not overly thick, but the Boost rubber material provides a very cushioned ride. Most of the cushioning is in the heel area which means soft landings and good forefoot grip for the runner. Some forefoot runners felt the cushioning in the heel was a bit of a waste, but heel strikers appreciated the design. Less cushioning in the forefoot means better ground feel which many runners prefer. Forefoot and heel strikers will both benefit from the midsole's shock absorbing features.
The shoe's moisture-wicking tendencies keep the foot cool and dry and prevent hotspots and chafing
. Most runners enjoyed the feeling of the upper, but a few sockless runners said the material irritated their bare skin after extended runs. The side overlays and laces work together to customize the fit of the shoe when the laces are pulled tight. The supplied EVA sockliner is removable and the shoe can accommodate most insoles and customized orthotics.
It is easy to identify an Adidas
shoe. The “three stripes” logo has been featured on the company’s athletic wear since 1952. Adidas running shoes tend to come in standard dark colors, but this is not the case with the Boston Boost 5. Men have some bright color options to include red, bright green, and bright yellow. Women can choose from hot pink and orange in addition to the standard black, blue, and gray.
This is a very durable shoe. Wearers can anticipate getting 400 miles or more out of this shoe. The interior components will probably break down before there is significant treadwear. The Continental outsole incorporates some of the same rubber material properties that are used on car and truck tires. This rubber is very resilient and can withstand not only wet and dry pavement
, but also wide temperature fluctuations. This means the shoe will give a consistent performance no matter how hot or how cold the pavement. This technology also helps the shoe maintain its integrity longer. In addition, the shoe incorporates AdiWear foam rubber which is abrasion-resistant and also quite durable. The upper material also adds durability to the shoe despite its open mesh design.
This shoe is made for road running, but it can be used on light trails. The protective components of the shoe are the durable outsole and midsole which protect the runner’s foot from the surface below. The mesh upper holds the foot securely in the shoe, but has no defense against snags and other potential trail hazards
. The suede toe guard offers some protection from thumps and bumps that may be encountered while trail running, but it is not meant to be a rock guard. Stick to the roads with these shoes and they will serve you well.
The Boost Boston 5 is a highly responsive shoe. Adidas claims their unique Boost technology generates more return energy than a standard EVA midsole platform. The midsole also provides good cushioning for the runner’s foot. The majority of the cushioning is in the heel which accounts for the bouncy feeling on landings. In spite of the cushioning, the forefoot area of the shoe still manages good ground feel which allows for confident and quick push-offs. Most runners enjoyed the fast feel of the shoe and said it made them want to run even faster
The Boston Boost 5 is listed as a neutral shoe that offers good support to the runner through the midsole and upper design. The upper is constructed to hug the foot for a tight, but comfortable fit. The midsole Torsion System features a thermoplastic arch support which lets the forefoot move independently from the rearfoot. This feature prevents excessive strain on the arch and allows the midfoot to roll gently forward after ground contact. The aggressive outsole also ensures a powerful and confident run. There were no reports of slipping on painted surfaces or very wet
This shoe does well on most solid and light packed terrain. Some runners said the shoe did well on light trails, but would not recommend it for rocky or very technical trails. The tread on the Continental outsole offers excellent traction and remains durable for road running. The AdiWear rubber in the forefoot area is thin enough to allow runners to feel the ground but still provides some cushioning. The shoe also does well on wet surfaces and can adapt to hot and cold temperatures.
The Boost Boston 5 retails for $120. Thanks to the release of the Boston Boost 6
, runners can probably find the 5th version for a greatly reduced price. If buying online, remember that the shoe runs small. Due to the shoe being discontinued, the more popular colors and sizes will sell out first.
The traction of this shoe is good on most hard surfaces. The Continental rubber on the outsole delivers better than average grip which means the shoe will do well under various conditions. Runners complimented the shoe on its steep uphill and downhill
handling. This is a good shoe for wet runs and also does fairly well on light trails.
Despite a moderately cushioned midsole, this shoe is fairly flexible. The flexibility comes from the design of the outsole which has spaces between the tread lugs which act like grooves in the forefoot area. These grooves allow the shoe to bend with the runner’s stride. The upper mesh material also helps make the shoe flexible while retaining structure. A slightly stiff heel and flexible forefoot allow a natural feeling with every step. Many runners commented on this feel which provided a very smooth ride.
This shoe has several stability features to correct any overpronation (inward roll) of the foot and ankle. The Torsion System allows the foot to move naturally and the midfoot cushioning carries the arch of the foot to ensure a stable ride. The midsole is not overly thick (16mm in the forefoot) which keeps the runner low to the ground compared to other cushioned running shoes. The shoe's forefoot area is fairly wide and makes a good platform for stable landings and quick push-offs. A low heel-to-toe offset also contributes to the shoe's stability. The aggressive tread also ensures a solid landing and lift.
With a stack height of 26mm in the heel and 16mm in the forefoot, the Boston Boost 5 has a resulting drop of 10mm. A 10mm heel-to-toe drop promotes a cushioned heel strike that lowers the chance of running injuries. Most runners described the shoe as very bouncy and responsive and did not mind the high heel-to-toe drop. Some runners would like to see it lowered, but had no problem taking the shoe for a long run.
Durable Continental and AdiWear outsole
Lightweight and thin EVA and Boost foam midsole
Unique midsole Torsion System
Light and breathable mesh upper
Great traction on wet and slippery surfaces
Convenient removable EVA sockliner
Very comfortable overall fit
Versatile shoe for everyday training or weekend racing
The Adidas Adizero Boston Boost 5 is a great shoe for long distance runners who like some cushioning under their feet. Heel strikers will benefit most from this shoe as the majority of the cushioning is in the heel area. The latest version of the Boston line features a wider toe box and an improved fit. The shoe is also slightly lighter for an even faster run. The shoe makes a great daily trainer, but its racing features become apparent at high speeds. For anyone looking for a responsive and durable running shoe at a great discounted price, this shoe may be a perfect choice.