Sierra thermal jacket
By Stormtech

Sierra thermal jacket ST258

Colour
Price ex VAT · bulk discounts apply automatically
Size & quantities
Add your logo — embroidery or print Digital proof sent to you

Logo set-up is a one-off — we digitise and proof your artwork before production. Decoration is charged per garment, per logo.

Free UK delivery over £99.00 · No minimum order · Price-match guarantee

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.

Product details

Fabric
100% Polyester pongee. Lining: 100% Polyester
Weight
90gsm
Specification

STORMTECH Thermal Shell™ insulation. Water-repellent finish. High-performance windproof outer shell. Internal full-length storm flap. Elasticised cuffs. Adjustable hem. Zipped handwarmer pockets. Decoration access.

Responsibly madeWRAPOeko-Tex Standard 100
Full spec sheet (PDF)
Size guide
SizeTo fit chest (in)
S35/38
M38/41
L41/44
XL44/47
2XL47/50
3XL50/53
4XL53/56
5XL56/59

Measurements are a guide (“to fit” body size in inches). Not sure? Ask us — we’ll help you size a rollout.

Care instructions

Machine wash cold. Gentle cycle with like colours. Do not use softeners. Do not bleach. Hang to dry. Do not iron. Do not iron decoration. Do not dry clean.

Delivery & dispatch

Free UK delivery on orders over £99.00 ex VAT. Blank stock ordered by 3pm is dispatched for next-day delivery. Decorated orders: artwork proofs for new logos in around 2 working days, then up to 10 working days for production after your approval. See full delivery options and pricing.

Decoration & artwork

Embroidery and DTF/screen print, all done in house. Upload your logo at checkout or add notes above — we send a free digital proof before anything is decorated. You only pay logo set-up once.

Returns

Blank, unworn stock can be returned within 30 days. Decorated and bespoke items are made to order and are non-returnable unless faulty. Read the full returns policy.