Sierra thermal jacket

Sierra thermal jacket – custom printed to order with your own logo, artwork or text. A practical, protective layer ideal for branded workwear and team kit. Printed in the UK with no minimum order: upload your design and we'll email a mockup to approve before we print.

Engineered for high performance with reduced weight, the Sierra thermal jacket is the ideal layering piece for any outdoor adventure, providing lightweight thermal efficiency. It features Stormtech Thermal Shell™ insulation and a DWR (Durable Water Repellent) finish to keep you warm and dry while repelling wet weather. A full-length internal storm flap adds extra protection against the elements, while the quilted design ensures optimal heat retention without bulk. Built with feather-free insulation, this jacket provides sustainable warmth, with elasticised cuffs to help lock in heat, ensuring you’re ready for anything, whatever the weather.

Size guide

To find your size, measure around the fullest part of your chest, keeping the tape level under your arms.

This is a general size guide. Actual fit varies by style (slim, regular or oversized) and by brand, so please use it as an approximate starting point.

How to customise your jacket

Please choose your print location and print size from the options below and upload your designs into the upload field. You will receive an email with a mockup of your order before printing.

Need help? Contact us at printing@theinnersanctumgroup.co.uk.