Style#: AR4225-005 Zoom Air units compress into the midsole foam when you step, then spring back quickly when you run and jump. The laceless closure system uses two durable straps, each with an adjustable slip-lock, so you can strap down then fine-tune the fit. A flexible inner sleeve allows the collar to expand for easier entry, with just the use of one hand. Slip your foot in, strap down, and you’re ready to go. The ripstop upper stretches in targeted areas, then locks you in where you need it.