Adizero Boston 12 M - IF9209 Size:9.5 Side pockets add convenience

Side pockets add convenience

Suitable for pro skippers and CrossFit athletes: Designed to meet the demands of competitive performance

itching or irritation

Made of recycled polyester with great stretch and featuring slits at sides

Mesh-lined ventilation at back yoke

Adizero Boston 12 M - IF9209 Size:9.5 Side pockets add convenienceFAST TEMPO TRAINING SHOES WITH HIGH PERFORMANCE TECHNOLOGY. The Boston Marathon is a race. But it's also a goal, and a training plan and all the days it stays on your mind before the big one. The adidas Adizero Boston 12 Shoes are built for mid to long distance running. They bring a race day feel to training with a propulsive feel that comes from the glass fiber infused ENERGYRODS 2. 0, which limit energy loss underfoot. They're fast, but that does