Protects essentials: Elastic mesh pocket with a secure zip cushions items and reduces impact from shocks, drops, or collisions to help protect your water bottle and phone. Two-pocket organization: Main pocket fits most mobile phones plus keys and cards; front pocket is sized for a water bottle. Keeps small outdoor items separated and easy to reach. Attachment options and compatibility: Built with system attachments on the back so it can mount to compatible backpacks or hang from a waist belt. Specifically compatible with the D-Des backpack and other gear that supports this attachment system. Lightweight and portable: Low bulk design makes it easy to carry on cycling trips, hikes, or everyday outdoor use without adding significant weight. Durable and functional construction: Elastic mesh and zippered closure combine to secure items while allowing quick access and ventilation for a bottle. Typical uses Cycling: Mount on your backpack or waist belt for quick access to a bottle and phone on the trail or commute. Day hiking/trekking: Carry a water bottle in the front pocket and phone, cards or keys in the main pocket for hands-free convenience. Fishing or outdoor leisure: Keep small essentials organized and protected while you move along shorelines or between locations. What it solves Prevents items from falling out or hitting other gear. Keeps drink and electronics accessible and organized. Attaches to multiple carry systems so you can use it with your existing backpack or belt. Includes the elastic mesh zip pocket, two storage pockets, and system attachments for backpack or belt mounting. Compatible with D-Des backpack and other equipment that supports the same attachment system.