Castelli Squall Shell Jacket - Green - XS

The Castelli Squall Shell jacket is designed to provide compact and reliable protection against un...

Best current price£120.00from 365Rider ES

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Product Information

Full details

The Castelli Squall Shell jacket is a high-performance, ultralight outer layer designed for male cyclists who need immediate protection from sudden weather changes. Featuring a 2-layer elastic waterproof membrane and fully sealed seams, it offers excellent moisture protection in an impressively compact 143g package; however, its regular fit may feel less aerodynamic than specialized race-cut alternatives.

All features

Age Groupadult
ColourGreen
GenderMale
SizeXS
Model Part Number4524507383-XS
BrandCastelli

Extended Product Information

FAQs

Is this jacket windproof?

Yes, the 2-layer membrane acts as an effective wind barrier, which is essential for protecting against cold wind-chill on descents.

Does it have pockets?

To maintain its ultralight weight and compact size, this jacket is designed as a shell and does not include external storage pockets.

How should I clean it?

Machine wash cold on a gentle cycle. Hang dry in the shade to protect the technical fabric.

Can I wear this over a bulky winter jacket?

The regular fit allows for layering over jerseys and mid-layers, but it may be tight if worn over a thick insulated winter jacket.

Is the jacket machine washable?

Yes, it is machine washable, but always use a gentle cycle and avoid harsh chemicals or bleach.

Troubleshooting

Water begins to soak through the fabric

The Durable Water Repellent (DWR) coating may be worn out. Re-apply a spray-on or wash-in DWR treatment to restore the water-beading performance.

Jacket feels damp inside

This is likely moisture buildup from sweat. Ensure you are layering properly with moisture-wicking base layers to keep your skin dry.

Pros and Cons

Pros

  • Extremely lightweight and packable for long rides
  • Effective waterproofing with fully sealed seams
  • Elastic fabric provides superior freedom of movement compared to stiff shells
  • High-visibility reflective elements for rider safety

Cons

  • Regular fit may be loose for dedicated time-trial or racing use
  • Not intended for extreme deep-winter insulation
  • Limited to male-specific cut and sizing

Setup, Compatibility & Care

To maintain the integrity of the waterproof membrane, always wash the jacket in cool water with a technical fabric detergent. Avoid using fabric softeners, as these can clog the pores of the membrane and reduce breathability. For storage, ensure the jacket is completely dry before folding it tightly to prevent mildew. When choosing a size, note that this is a regular fit; if you prefer a tighter race fit, you may want to consult the size guide to see if sizing down is appropriate for your body type.

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