The Alphafly 3 is Nike's lightest Alphafly ever

and relaxing on rest days

Featuring crisp leather

Hidden internal chest pocket

Sku: JS3514

Birkenstock Boston Crosstown Color:Oiled Leather The Alphafly 3 is Nike'sMens Sizing The BIRKENSTOCK Boston is a veritable classic that can easily be worn all year round. It has a legendary status thanks to its sophisticated, individually adjustable design. The sporty Adventure Crosstown version is designed for BIRKENSTOCK fans who are active and looking for an experience. The polyurethane sole is affixed to the footbed in two layers and therefore offers maximum flexibility, grip, and durability. The upper is made from