Silca Mattone Web Seat Pack Ready When You Need It, Out of the Way When You Don't The most adaptable addition to Silca's seat pack lineup, the Mattone Web is designed to mount securely and deploy quickly, whether that's stashing a roadside find or grabbing the right tool for an unexpected repair. Semi-elasticized mesh gussets flex with your load, so the pack stays compact when lightly packed and expands the moment you need more room. Features Semi-elasticized mesh side gussetsdynamically adapt internal volume to whatever you're carrying360-degree ripstop nylon chassishandles structure and road exposure High-tension BOA(R) closure systemcompresses on demand for zero migration, even on rough terrain Reinforced stability strapkeeps the pack from swaying under the saddle Ultra-compact profilewhen lightly loaded, staying out of the way until you need it SPECIFICATIONSIntended Use Road, Gravel Closure Hypalon BOA(R) Closure System Chassis Material360deg ripstop nylon (60/40 nylon-polyester blend)Mounting Hypalon strap threaded over saddle rails Capacity Expandable up to 0. 38 LWeight77 g Dimensions8" x 3" x 2" | Silca | Mattone Web Seat Pack Expandable Up To . 38L, 8X3X2" | Black | Boa | Nylon