Polaris BL Zip base layer review

Changeable weather wear

Our rating 
2.5 out of 5 star rating 2.5
GBP £28.00 RRP | USD $38.40
Polaris BL Zip long sleeve jersey

Our review

Good temperature control and comfort, but needs extra help to combat windchill if worn as a jersey
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The BL Zip is pitched as a base layer rather than a jersey, but it doesn’t look out of place when worn on its own.


Contrasting and contoured side panels add some visual interest and, more importantly, contribute to a slim fit with no excess material.

Given its base layer provenance, the BL Zip is unsurprisingly light on features. But a high collar is always welcome, and the suitably long sleeves and back mean no bits of you stick out to catch a chill.

The brushed polyester fabric has a soft feel and strikes a good warmth balance, although it isn’t windproof and does let the chill through.


Combined with a lightweight gilet, you’ve got the makings of a decent combo for reasonably still days. The jersey also has wicking properties, so if it turns out to be a warmish autumn, you won’t boil.

Product Specifications


Name BL Zip Long Sleeve Jersey (10)
Brand Polaris

Description • A long sleeved base layer designed in AirBASE™ • 100% Brushed Polyester (soft handle) • High wicking • Quick drying • Contrast side panels to give a contoured fit
Clothing Sizes Available L M S XL XXL