Silca Mattone Ultimate Seat Pack - 0.4L

Specifications

• Volume: 0.4L (13.5 US fl oz)
• Weight: 44 g (1.55 oz)
• Dimensions: 128 x 60 x 91 mm (5.04 x 2.36 x 3.58 in)
• Construction: RF-welded exterior panels, TPU composite fabric
• Closure: BOA Li2 metal dial with TX4 soft lace cable
• Strap: Hypalon reinforced
• Zipper: Water-resistant YKK
• Interior: Clamshell opening, single main compartment plus flat lid pocket
• Mounting: Integrated strap for a light or camera
• Capacity: A tube, CO2 cartridge and regulator, tire levers, and a multitool
• MPN: AM-BG-018-ASY-0100

FAQ

How is the Silca Mattone Ultimate different from the original Mattone?

The Silca Mattone Ultimate weighs 44 grams against 90 grams for the original Mattone, and holds 0.4L instead of 0.5L. It swaps stitched canvas for RF-welded TPU composite panels and upgrades the closure from the standard BOA dial and open guide loop to the BOA Li2 metal dial with a TX4 lace cable.

What fits inside the Silca Mattone Ultimate Seat Pack?

The 0.4L main compartment of the Silca Mattone Ultimate holds a tube, a CO2 cartridge and regulator, tire levers, and a multitool. There is also a flat lid pocket for smaller items, and an integrated mounting strap on the outside for a light or a camera.

Does the Silca Mattone Ultimate Seat Pack sway or rattle?

The BOA Li2 dial on the Silca Mattone Ultimate applies micro-adjustable compression that pulls the pack upward against the saddle rails rather than only cinching a strap shut. Silca designed it that way to eliminate sway, and the welded TPU shell has no stitched panels to work loose.

Is the Silca Mattone Ultimate waterproof?

Silca describes the Mattone Ultimate as weatherproof rather than waterproof. The RF-welded seamless exterior limits the points where water can get in and the YKK zipper is water-resistant, so it is built to shed rain rather than to be submerged.

Best For

Best for the road rider or racer who wants a flat kit on the bike without a bag that swings, rattles, or adds visible bulk behind the saddle. At 44 grams it is the pick for a weight-conscious race setup, where a heavier bag tends to end up in a jersey pocket instead. If you carry two or three tubes on long days, the Mattone Grande is the better call, and we stock that one too.