Castelli Squall Shell Jacket - Grey - M

The Squall Shell Jacket is fully waterproof and remarkably light, making it the perfect emergency ...

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Product Information

Full details

The Castelli Squall Shell Jacket is designed for adult male cyclists seeking reliable protection from sudden rain and wind without added bulk. Its key benefit is being fully waterproof, remarkably light, and easily packable, making it an essential emergency layer. A potential caveat is its medium breathability, which might be a consideration for very intense efforts in warm, wet conditions.

All features

Age Groupadult
ColourGrey
GenderMale
SizeM
Model Part Number4524507-870
BrandCASTELLI

Extended Product Information

FAQs

What is the primary purpose of the Squall Shell Jacket?

Its primary purpose is to serve as a lightweight, packable emergency jacket for protection against sudden rain and wind during cycling.

How much does the jacket weigh?

The jacket weighs approximately 94g, making it exceptionally light.

What temperature range is this jacket suitable for?

It is designed for temperatures ranging from 4°C to 18°C.

Can I wear this jacket in a heavy downpour?

While it is fully waterproof, it is best suited for unexpected showers or moderate rain. For prolonged, heavy downpours, its medium breathability might become a factor.

How should I clean the jacket?

Machine wash cold on a gentle cycle with mild detergent, and avoid fabric softeners. Air dry or tumble dry on low heat.

Is this jacket suitable for men and women?

This specific model is designed with a male fit. Castelli may offer women's specific versions.

What does 'taped seams' mean?

Taped seams mean that waterproof tape is applied over the stitches on the inside of the garment, preventing water from leaking through the needle holes.

Troubleshooting

Jacket is no longer repelling water effectively

The DWR treatment may have worn off. Clean the jacket and re-apply a DWR spray or wash-in treatment according to the product's instructions.

Water seeping through seams

Ensure all seams are properly taped and intact. If seams appear damaged, the jacket's waterproof integrity may be compromised.

Zipper is stiff or difficult to move

Gently clean the zipper with a damp cloth and mild soap. Ensure no fabric is caught in the zipper teeth. Lubricate with a silicone-based zipper lubricant if necessary.

Jacket feels clammy inside during use

This can be due to medium breathability. Ensure you are wearing appropriate base layers. For very high-intensity efforts, consider removing the jacket temporarily or opening it if conditions allow.

Pros and Cons

Pros

  • Excellent waterproof protection for unexpected downpours.
  • Extremely lightweight and highly packable.
  • Effective wind barrier for cooler conditions.
  • Comfortable fit with good freedom of movement due to stretchy fabric.
  • Enhanced visibility with rear reflective stripe.

Cons

  • Medium breathability may not be sufficient for high-intensity efforts in wet conditions.
  • Limited insulation for very cold weather.
  • The jacket is designed as an emergency layer, not for prolonged, heavy rain.
  • Elasticated cuffs and waist might not provide a perfect seal for all body types.

Setup, Compatibility & Care

Setup:

No complex setup is required for the Castelli Squall Shell Jacket. Simply wear it over your cycling jersey when needed.

Compatibility:

This jacket is designed for adult male cyclists and is generally compatible with standard cycling apparel. It is suitable for use with road cycling, gravel riding, and mountain biking where protection from the elements is necessary.

Care Instructions:

To maintain the jacket's waterproof and performance properties:

  1. Washing: Machine wash cold (30°C) on a gentle cycle with a mild detergent. Avoid fabric softeners, as they can clog the waterproof membrane.
  2. Drying: Tumble dry on low heat or hang to air dry. Do not iron.
  3. Re-proofing: Periodically re-apply a DWR (Durable Water Repellent) treatment if water no longer beads on the surface. Follow the product instructions for the re-proofing agent.