This style also uses a full length memory foam insert for extra comfort and cushioning

Details: Lace-up closure

Adjustable drawcord at the hem to help keep the warmth in with zippered armpits for adjustable temperature control

from the design

Men's WaveMax Width:Medium - D This style also uses aIntroducing the WaveMax, the newest model featuring Spiras WaveSpring Technology with an all new performance running Last for an industry leading fit. The WaveMax has a highly modern midsole geometry creating a smooth running experience with 21st Century cushioning. Perfect for the longest runs! For those who demand lighter weight, breathable, and performance Max Cushioning shoe. Features Modern gait assisting midsole geometry with a 34 mm Heel and 28