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Ultra Zip - Big Heart Adventures

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Color
Charcoal
Size

The Women's Ultra Zip Base Layer top is as soft and comfortable as ever combining all the natural benefits of our finest MicroMerino® fabrics with just enough nylon to create our most durable fabric ever to withstand the most demanding adventures

Designed with Ultra Runners in mind we made it extra comfortable and extra durable. Made with lightweight 83% superfine Australian Merino Wool, 12% Nylon for durability and 5% Elastane for an easy four-way stretch and freedom of movement. Still Merino-rich, and perfect for adventure racing and what in Australia, we like to call ‘bush bashing’.  The sporty fit is streamlined, but not ‘contact fit’ like the Altitude Base Layer Range.

It is the ultimate in versatility and temperature regulation; roll the sleeves up, and pull the zip down when it’s mild and pull the sleeves down, zip up and thumb loops on when the temperature drops. Wear it on its own to stay cool in warm or mild weather, or as part of a layering system when the temperature drops.

This Base Layer is packed with extra performance features like tag-free labels and flatlock stitching helps eliminate chafe and maximize comfort. The high collar and ¾ zip add greater temperature regulation, while the thumb loops keep your hands warm and stop your sleeves riding. The reflective trims have been added for extra safety in low light.

Designed with a body-skimming, sports fit. True to size.

Print to order. Exclusive Big Heart Adventures limited edition print. 

Lightweight 160gsm

83% superfine Australian Merino Wool

12% Nylon for extra durability

5% Elastane for an easy all-way stretch

BENEFITS OF MERINO

LIGHTWEIGHT

THERMO REGULATING

SUPER SOFT & COMFORTABLE

BREATHABLE

MOISTURE WICKING

ODOUR RESISTANT

NATURAL

ETHICALLY MADE

Customer Reviews

Based on 41 reviews
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A
Ann Dohnt (Adelaide, AU)

Absolutely love it. Snug and warm without any irritation.

Thank you for reviewing our products Ann :) We're glad you love the gear as much as we do!

G
G R NSW (Sydney, AU)
Love colour and fit

I chose the red and love the colour. The fabric hasn't irritated me which some Merino products have done in the past. I bought small as I usually wear 8 to 10 and it fits well. Thinking of buying another.

V
Vanessa M (Cambridge, US)
Love it

Looks and feels great. Has kept me warm under my jacket in Boston. My second one of these and love it

D
Diane J (Melbourne, AU)
Good top for walks/runs/hikes

This top will be a great addition for my multi-day hikes when I need an extra layer. I got the red. Love the colour as it’s a true red. It’s a great fit. I bought an M as I’m a size 10/12. It’s not skin tight but I didn’t want that. I’m also hoping the top will last longer than other merino tops I’ve bought as it has nylon and elastane to help strengthen the wool. I’ve found pure merino wool just isn’t durable enough for hiking/camping trips. I just wish it was about 5 centimetres longer.

A
Adri (Melbourne, AU)
Great top

Excellent fit, comfy and good colour (green).

L
Lauren (Adelaide, AU)
Looooove it

Great fit, super comfortable. The collar keeps my neck warm but zip allows for airflow when needed. Great length,too.

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