New Balance’s 1540 trainer was developed for runners seeking maximum comfort and stability control. The latest update (version 3) has two layers of performance foam (ENCAP® midsole and blown rubber outsole) for superior support and soft rebound. Synthetic/mesh upper. Rollbar with medial and lateral TPU posts for the ultimate in motion control. Made in U.S.A. SL-2 last. Limited stock in women’s 4E width. Check pulldown for current availablility.