Vivobarefoot - Primus Lite III - Bright White - Women's Size:EU38 / UK5 / US7 The main back compartment is

The main back compartment is designed to lay flat when empty while the 4-way stretch mesh accommodates a large capacity

but not quite as much as the Z-Trek

non-stretch internal cord ring + whistle + elastic loop for upper pole attachment

With a full eVent® bootie construction

Vivobarefoot - Primus Lite III - Bright White - Women's Size:EU38 / UK5 / US7 The main back compartment isMove as Mother Nature Intended Move as Mother Nature intended. The Primus Lite III is Vivobarefoot's hero minimalist trainer that lets feet move in the most natural way possible. Tap into barefoot performance for your best performance. Unleash your natural potential in every workout. Lightweight Trainers Made Using Recycled Materials Get as close to the ground as possible with the Primus Outsole but stay protected with the Pro5 Puncture Resistant