Mountain Equipment Nava LS Zip Tee

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A strong choice as a year-round base layer or standalone in warmer temps, especially for those prioritising breathability and low bulk.

Mountain Equipment says: 

Experience the ultimate in comfort and performance with the Nava Zip T. Its lightweight design and exceptional moisture-wicking capabilities make it perfect for wearing alone during rapid ascents or as a base layer when layering up. With its innovative HeiQ technology, odours are neutralized, and the deep centre front zip provides extra ventilation to keep you cool and comfortable.

Our Verdict

A lightweight, breathable long-sleeve shirt that stays fresh and dries quickly, the Nava LS Zip Tee strikes a balance between simplicity and technical function. At 152g (Medium), it’s light enough for fast-moving days, and it’s a baselayer I’d be happy using year-round. The polyester fabric has a soft, comfortable feel next to the skin and wicks moisture efficiently during sustained effort. Venting is handled well by the deep centre zip, and the flatlocked seams sit cleanly, even under pack straps. The slim fit layers smoothly and offers enough stretch for a wide range of motion. HeiQ Fresh odour control proves valuable on multi-day trips.

– Reviewed by Ultralight Outdoor Gear

Features

• 125gsm lightweight polyester fabric with 87% recycled content
• HeiQ Fresh odour-neutralising technology
• Slim-fit design offers maximum comfort and reduced friction
• Flatlocked seams increase freedom of movement and next-to-skin comfort
• The deep YKK® front zip aids heat dump and makes on-and-off easier

Specifications

• Small weighs: 141g
• Medium weighs: 152g
• Large weighs: 166g
• XLarge weighs: 174g
• Fit: Slim

Material & Construction

• 87% Recycled Polyester, 13% Polyester

Help & advice:

• The Ultimate Guide to Lightweight Baselayers
• Recycled Content in Outdoor Gear