Engineered mesh provides ventilation for your forefoot while supporting your midfoot. The partial mesh inner sleeve enhances breathability while offering and a sock-like fit. adidas Yeezy Boost 350 V2 Beluga 2.0 adidas BoostOutlet. Plush foam and mesh tongue for breathable comfort and Midsole flex grooves provide greater forefoot flexibility Adidas Yeezy 350 Boost Waffle outsole for durability and great multi-surface traction.