Adidas Adios Boost Shoe Review

Ryan's Review
I like lightweight shoes. I have toothpicks for ankles and a frame sometimes described as bird-like, so I appreciate shoes that cut the weight at the end of my slim leg pendulum. I also like shoes in the 8-10mm drop range, but unfortunately for me, most lightweight trail shoes gravitate toward the 4mm drop end. These make my calves explode.

So I tried an experiment with road shoes: Adidas Adizero Adios 2.0. These shoes are 8oz, 10mm drop, with a tough Continental rubber outsole. I loved them. I was running rugged mountain trails in the Golden, CO area and not feeling rock poke. My calves were singing praises. My only issue was the upper. I couldn't lock down my heel without tying the laces really tight, hurting my instep.

Adidas Adios 2.0

Enter the Adidas Adios Boost. Same specs (drop, weight, outsole) as the 2.0, but with two major improvements. First, the midsole: Boost technology does not use EVA foam; instead, it is made of thermoplastic beads that are fused together. This midsole is among the bounciest and most durable I have ever run on. It's like Hoka bounce without the stack height or extra give. Second, the upper has a stiffer lacing system that allows for heel lockdown that is so good I don't even run in my Adios 2.0 any more. It can't compare. 

Adidas Adios Boost. White Ranch Park, Colorado

This is a lightweight road shoe that you can use for running mountain trails. My first run in the Adios Boost was a 23 miler at White Ranch, featuring loads of steep, rocky terrain, cambered, snowy trail, and 4,000+ feet of vert gain. This shoe is up for the task. The next weekend I ran a 25 miler at White Ranch, again. I could bomb down the loose rock with confidence that the outsole and midsole would protect me, despite the fact that this road shoe has no rock plate. They're super snappy on the uphills and I've had some of my fastest mountain training runs in them.

Ride and Fit
The ride is firm on the Adios Boost, and it feels like an 8mm drop, but the claim is 10mm. Two drawbacks for trail running is they're not good in loose, dry rock/sand, and they're ice skates in mud. Compared to the Adios 2.0, they run slightly larger than size (maybe try 1/2 size down). The toe box is standard, and the heel is narrow. The low heel collar lets in a lot of debris, so you might want to use gaiters on dirty trail.

Pedigree
Hal Koerner won Hardrock 100 in Adios 2.0. Chris Vargo won Golden Gate Dirty 30 in Adios 2.0. Patrick Makau set a world record marathon 2:03:38 in Berlin in 2011 in Adios 2.0. Now with the Boost midsole technology -- both springy and durable -- if a touch heavier than EVA foam, this is a superb shoe.

Adios Boost sticking to rock on Beaver Brook Trail

Alaina's Review
Ever since I tried on the Adidas Boost shoes while working at Runners Roost, I couldn't wait to own a pair. The original Boost shoes are super comfy, but they are a lot bulkier than the majority of shoes I run in. When Adidas added the Boost technology to their lightweight Adios, I was sold. 

My first run in them was a 12 mile run on the Colorado trail. When I first put them on I was worried that they wouldn't have enough cushion to protect me from feeling every rock on the trail. I was quickly proven wrong. For how little cushioning there is, I was amazed at how much they protected my feet. I could still feel the ground really well, just not the jabbing rocks that I can sometimes feel in my Salomon Sense Ultra and La Sportiva Vertical K. They were very quick and responsive. I just love how the Boost technology feels.

Pros
Soft, yet springy and responsive
Good ground contact feeling, yet protective on all terrain
They just feel fast

Cons The only cons I have for these shoes are based on how they perform on trails, and obviously they were designed as a road shoe.
Very slippery on light, loose dirt/sand
Not great traction on ice/snow