Product Overview
The Stormtech Womens Sierra thermal jacket is a meticulously engineered garment designed to provide exceptional warmth without the burden of excessive weight. As a lightweight thermal layer, it serves as an essential piece of equipment for professionals who require mobility and protection in unpredictable outdoor environments. Utilising Stormtech Thermal Shell insulation, this jacket offers a high degree of thermal efficiency while maintaining a streamlined silhouette.
Equipped with a Durable Water Repellent (DWR) finish and a high-performance windproof outer shell, the Sierra jacket is built to repel wet weather and block biting winds. The internal full-length storm flap provides an additional barrier against the elements, ensuring that heat remains trapped where it is needed most. This is a functional, resilient jacket that balances technical performance with a professional appearance.
Key Features
- Stormtech Thermal Shell Insulation: Provides superior heat retention using feather-free technology, ensuring warmth even in damp conditions without adding unnecessary bulk.
- DWR (Durable Water Repellent) Finish: The outer fabric is treated to shed moisture, keeping the wearer dry during light rain or sleet.
- Windproof Outer Shell: Engineered to prevent wind chill from penetrating the garment, making it ideal for exposed outdoor sites.
- Internal Full-Length Storm Flap: Increases weather protection by preventing draughts from entering through the zip line.
- Adjustable Hem and Elasticised Cuffs: Allow for a customised fit that helps lock in body heat and prevents cold air ingress.
- Zipped Handwarmer Pockets: Secure storage for essential items while providing a warm refuge for hands during cold shifts.
- Decoration Access: Features specific access points for branding, ensuring that customisation can be applied cleanly and professionally.
Design & Performance
Constructed from a 100% Polyester pongee outer and a 100% Polyester lining, the Sierra jacket is designed for durability and comfort. The pongee fabric is chosen for its smooth finish and resistance to wear, making it a reliable choice for daily work use. The quilted design is not merely aesthetic; it serves the technical purpose of ensuring the insulation is evenly distributed for consistent heat retention across the torso.
Despite its lightweight feel, the jacket is incredibly sturdy. The use of feather-free insulation is a deliberate choice for sustainability and performance, providing a resilient thermal barrier that maintains its loft over time. The feminine cut ensures a professional fit that does not restrict movement, which is vital for active roles on-site or in the field.
Customisation: Print & Embroidery
This jacket is an excellent canvas for corporate branding. For a sophisticated and enduring professional appearance, we recommend embroidery. It is particularly effective for company logos and staff names, offering a textured, high-quality finish that withstands the rigours of outdoor work. The internal decoration access ensures that the embroidery backing is hidden, maintaining the jacket's internal comfort.
Alternatively, for larger or more complex designs, printing is an effective option. Our in-house team in Telford has been perfecting these techniques since 1976, ensuring that your branding is applied with precision. Whether you choose the traditional feel of embroidery or the bold clarity of print, your team will present a unified and professional image.
Use Cases
The Stormtech Sierra jacket is ideally suited for outdoor professionals, site managers, and corporate teams who require a reliable layering piece. Its windproof and water-repellent properties make it a staple for construction, logistics, and field-based roles. Additionally, its sleek, modern design makes it a popular choice for corporate events and promotional wear where a high standard of presentation is required.
Why MyWorkwear
Established in 1976, MyWorkwear has decades of experience in providing high-quality, customised clothing to businesses across the UK. Based in Telford, our expert team manages the entire customisation process in-house. We understand the technical requirements of workwear, ensuring that every garment we produce meets our rigorous standards for quality and durability.
Practical Advice
The Sierra jacket is designed as a layering piece. To maximise its thermal efficiency, it should be worn over a moisture-wicking base layer or a medium-weight sweatshirt. The size range spans from XS (UK size 8) to 3XL (UK size 20), providing an inclusive fit for all team members. The tear-away tag is a useful feature for those looking to rebrand the garment entirely.
Caring for your product
To maintain the high-performance characteristics of the Stormtech Thermal Shell and the DWR finish, it is important to follow specific care instructions. We recommend a cold machine wash on a gentle cycle with similar colours. Using cold water prevents the synthetic fibres from breaking down and helps preserve the integrity of the water-repellent coating.
It is crucial to avoid the use of fabric softeners, as these can clog the pores of the technical fabric and diminish the effectiveness of the DWR treatment. Similarly, do not use bleach, as this will weaken the polyester fibres and cause discolouration to both the jacket and your custom branding.
After washing, please hang the jacket to dry. Do not use a tumble dryer, as the high heat can damage the insulation and the outer shell. Ironing should be avoided entirely, particularly over any printed or embroidered areas, as direct heat will cause permanent damage to the decoration and the synthetic fabric. This garment is not suitable for dry cleaning.
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