Grinta Roll Top BagThe cutting edge BOA system enhances the the versatility for any sized adventure. The SILCA Grinta 2L 5L Roll Top Saddle bag combines the power of the Boa Closure system with a unique internal frame structure capable of expanding between 2 and 5 liters while maintaining maximum security and stability. The bag combines welded construction and a roll top design ensuring 100% waterproof performance, and a clever air bleed valve allows excess air to be