Design specs so far:
1000d US 75th Ranger green Cordura
Rolltop and zipperless
Minimal seam usage to help waterproofing
Mounted via bottlecage bolts for cleaner look and minimal Velcro use
So still sewing, 3 hours in making multiple other projects, fuelled by diet coke, sugar free chocolate and insulin

Will hopefully be complete tonight , ill post pictures once done