The Lezyne Micro Caddy QR is a compact, aero shaped Caddy that attaches to the seat rails with the QR mounting system. Labelled, cycling-specific organizational pockets keep all accessories in place for when they are needed. It is made of durable woven nylon fabrics, water resistant zippers, and reflective logo and stripes aid rider visibility. Two sizes (M and S) allow the rider to choose just the right sized Caddy. An easily accessible, external multi-tool compartment allows for quick adjustments. Compact, aero-shaped caddy with QR Mounting System,Durable woven nylon construction,Labelled organizational pockets on the inside,Quick-access multi-tool pocket on the outside,Reflective piping aids rider visibility at night,Water resistant zipper with large finger loop,Available in Small and Medium sizes.