Choose X-Lab accessories when you want functional design and aero performance

The XLab Stealth Pocket 400XP is a universal nutrition bag that mounts to top tube via three straps, for secure storage.

Its design is optimized for bikes with angled stems or cables in the top tube, providing fast access to small vitals that can make the big difference.

Four outside pockets quickly stash salt, electrolytes, pain tablets or empty nutrition wrappers while the inner storage compartment comfortably fits up to five gels. Its highly visible, silver-colored interior makes it easy to see contents and stay focused on the road and best of all it stays put thanks to a rubberized hull with structured sides, that maintains its aero shape, even at full capacity.


Aerodynamic design - Optimal height and width reduces drag caused by stem and headset spacers with no increase in frontal area, while the 72 degree nose fits tight against the stem, tapering into a smooth aero profile

Focus on the Road: Smarter features for carefree storage - No more fumbling for the small vitals, or risk dropping them when they are needed most. Tuck away salt, electrolyte or Ibuprofen tablets into one of the 4 exterior pockets.

Pockets are highly elasticized to keep items protected yet easily accessible

Large, easy-pull zipper for ease of access to main compartment even when race day adrenaline is at its peak

Highly visible, silver colored interior makes it easy to find contents


Dimensions: 10.5" (26.7cm) L x 2.1" (5.3cm) H x 1.5" (3.8cm) W

Material: Smooth woven Nylon exterior. Reflective, insulated interior lining. Anti-slip rubber base.

Volume: 23.2 in3 (380 cm3)

Weight: 2.7 oz (76g)

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