Silca

Mattone Ultimate Seat Bag

Silca Mattone Ultimate Seat Bag is a compact, performance-oriented saddle bag built for road riders who want reliable flat-kit storage without a bulky silhouette or a loose fit under the saddle. Its laminated TPU composite fabric and RF-welded exterior panels reduce seam bulk and eliminate needle holes, creating a smoother, more weather-resistant shell that cinches tight and stays quiet over rough pavement.

Inside, a clamshell opening makes it easy to access essentials mid-ride, with a single main compartment and a flat lid pocket to keep a tube, lever, inflator, and multi-tool organized instead of stacked. The standout detail is the BOA Li2 closure system, using a low-profile metal dial and TX4 soft lace to dial in retention precisely—secure without adding the bulk and flop common to traditional strap-only seat packs.

• RF-welded TPU composite shell - Replaces stitched seams to reduce seam bulk and improve weather resistance for a tighter, cleaner under-saddle fit
• 0.4L capacity - Purpose-built room for a TPU tube, tire lever, inflator, multi-tool, and a small gear wipe without overpacking
• Clamshell access with lid pocket - Faster retrieval and better organization than a single open cavity
• BOA Li2 dial with TX4 lace - Precise, repeatable tensioning for secure retention in a low-profile package
• Hypalon-reinforced saddle strap - Durable, high-grip mounting interface designed to resist wear and movement
• Water-resistant YKK zipper - Helps limit moisture entry at the main opening
• Integrated light/camera attachment point - Adds a clean mounting option without extra clamps or adapters