Weight: 16.2 oz (465 g); Capacity: 12.1 gal (6 L); Load Capacity: 11.0 lbs (5 kg); Waterproof Size: L: 18.9 inches (48 cm); W: 6.3 inches (16 cm); D: 5.5 inches (14 cm); W strap (2 places) on the seat post to prevent fluttering.