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Time Saver Guide to Choosing a Waterproof Jacket

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Baselayer - Long Sleeves

NEW Season Baselayer

NEW Season Baselayer

17 products

Zip Neck

11 products

Crew Neck

22 products

Icebreaker Baselayers

Icebreaker Baselayers

2 products

Patagonia Baselayers

Patagonia Baselayers

4 products

Rab Baselayers

4 products

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Mammut

Aenergy FL Longsleeve

Weighs

113g

Weighs:

113g (Medium)

Baselayer Fabric:

Synthetic

Baselayer Fit:

Athletic/Close Fit

Neck Style:

Crew Neck

Mammut Aenergy FL Longsleeve combines exceptional lightness, advanced functionality, and sustainability. Strategically placed mesh ventilation zones promote breathability and moisture management. Mammut says: Our lightest and most technical fi…

Was:

Now: $88.39

RRP: $95.19 | Save: $6.80

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Smartwool

Active Ultralite Short Sleeve Tee

Weighs

119g

Weighs:

119g (Medium)

Baselayer Fabric:

Merino Blend

Baselayer Fit:

Athletic/Close Fit

Neck Style:

Crew Neck

UOG TOP PICK – For Lightweight Comfort in the Heat: With a breathable Merino-TENCEL blend, quick-drying performance, and odour resistance, the Smartwool Active Ultralite Short Sleeve Tee is a top choice for multi-day hikes and high-output days …

Was:

Now: $67.99

RRP: $74.79 | Save: $6.80

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Rab

Sonic Ultra Zip

Weighs

119g

Weighs:

119g (Medium)

Neck Style:

Zip Neck

Baselayer Fit:

Athletic/Close Fit

Baselayer Fabric:

Synthetic

UOG TOP PICK - Sonic Ultra Zip Built with quick-wicking Motiv Aero fabric and a movement optimised cut, this mountain running, long sleeve tee is designed to keep you cool, comfortable and protected. It's one of our favourite baselayers and one of ou…

Was:

Now: $67.99

RRP: $81.59 | Save: $13.60

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Montane

Dart Lite Long Sleeve T-Shirt - Past Season Colours

Weighs

121g

Weighs:

121g (size medium)

Baselayer Fabric:

Synthetic

Baselayer Fit:

Athletic/Close Fit

Neck Style:

Crew Neck

UOG TOP PICK - Dart Lite Long Sleeve T-Shirt Dart Lite Long Sleeve T-Shirt is a fully recycled Synthetic technical T-Shirt/base layer that offers a highly breathable and odour-resistant layer. It's one of our favourite baselayers and one of our top..…

Was:

Now: $47.59

RRP: $67.99 | Save: $20.40

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Montane

Dart Lite Long Sleeve T-Shirt

Weighs

121g

Weighs:

121g (size medium)

Baselayer Fabric:

Synthetic

Baselayer Fit:

Athletic/Close Fit

Neck Style:

Crew Neck

UOG TOP PICK - Dart Lite Long Sleeve T-Shirt Dart Lite Long Sleeve T-Shirt is a fully recycled Synthetic technical T-Shirt/base layer that offers a highly breathable and odour-resistant layer. It's one of our favourite baselayers and one of our top..…

Was:

Now: $58.47

RRP: $67.99 | Save: $9.52

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Mammut

Aenergy FL Half Zip Longsleeve

Actual:

129g

Baselayer Fabric:

Synthetic

Baselayer Fit:

Athletic/Close Fit

Neck Style:

Zip Neck

A well-fitting base layer with an impressively large zip that ventilates heat quickly when you need it to. Mammut says: Our lightest and most technical first layer is a true multi-sport MVP. Airy and breathable with offset merrow stitching, it…

Was:

Now: $95.19

RRP: $101.99 | Save: $6.80

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Rab

Force LS Tee

Weighs

130g

Weighs:

130g (Medium)

Neck Style:

Crew Neck

Baselayer Fit:

Athletic/Close Fit

Baselayer Fabric:

Synthetic

UOG TOP PICK - Force LS Tee Rab's Force LS Tee is a next-to-skin technical short sleeve tee with Polygiene odour control treatment, designed for comfort and freshness during active use, one of our top picks! Rab says: Designed comfort next to skin, t…

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Now: $47.59

RRP: $54.39 | Save: $6.80

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Mountain Equipment

Ignis LS Zip Tee

Weighs

141g

Weighs:

141g (size medium)

Baselayer Fabric:

Synthetic

Baselayer Fit:

Athletic/Close Fit

Neck Style:

Zip Neck

UOG TOP PICK -Ignis LS Zip Tee The Mountain Equipment Ignis LS Zip Tee is a fabulous wicking next-to-skin layer that uses Polygiene to reduce odour build-up. It has a deep zip for venting and is, one of our top picks! Mountain Equipment says: T…

Was:

Now: $54.39

RRP: $61.19 | Save: $6.80

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Patagonia

L/S Capilene Cool Merino Shirt

Weighs

148g

Weighs:

148g (based on size medium)

Baselayer Fabric:

Merino Blend

Baselayer Fit:

Athletic/Close Fit

Neck Style:

Crew Neck

UOG TOP PICK - L/S Capilene Cool Merino Shirt This is such a nice, next-to-skin base layer that doesn’t irritate you no matter how hard you exert yourself, one of our top picks! Patagonia says: A breathable merino technical top, designed…

Was:

Now: $88.39

RRP: $108.79 | Save: $20.40

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Smartwool

Active Ultralite Long Sleeve Tee

Weighs

151g

Weighs:

151g (Medium)

Baselayer Fabric:

Merino Blend

Baselayer Fit:

Athletic/Close Fit

Neck Style:

Crew Neck

UOG TOP PICK – For Lightweight Performance on Hot, Long Days: With a breathable Merino-TENCEL blend, fast drying time, and reliable odour resistance, the Smartwool Active Ultralite Long Sleeve Tee is a minimalist layer built for multi-day hikes…

Was:

Now: $81.59

RRP: $88.39 | Save: $6.80

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Patagonia

Capilene Midweight Crew

Weighs

174g

Weighs:

174g (Medium)

Neck Style:

Crew Neck

Baselayer Fit:

Athletic/Close Fit

Baselayer Fabric:

Synthetic

The classic, go-anywhere all-around baselayer, made with 100% recycled content. The smooth, soft face makes for easy layering; hollow-core yarns and a diamond-grid back trap warm air, wick moisture and dry fast. HeiQ Fresh durable odor control keeps.…

Was:

Now: $95.19

RRP: $108.79 | Save: $13.60

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Patagonia

Capilene Thermal Weight Zip Neck

Weighs

175g

Weighs:

175g (size Medium)

Baselayer Fabric:

Synthetic

Baselayer Fit:

Athletic/Close Fit

Neck Style:

Zip Neck

Warm, breathable, and packed with practical features, this baselayer is a top choice for cold-weather adventures. Patagonia says: A breathable, lofted baselayer to keep you warm in cold conditions. Polartec® Power Grid® fabric with...

Was:

Now: $135.99

RRP: $149.59 | Save: $13.60

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Turbat

Hike Lite LS T-Shirt

Weighs

180g

Weighs:

180g (Medium)

Baselayer Fabric:

Synthetic

Baselayer Fit:

Athletic/Close Fit

Neck Style:

Crew Neck

A well-tuned long-sleeve layer that performs in heat without feeling heavy or overbuilt. Turbat says: The updated series of Hike thermal T-shirts with the lighter and more elastic material, provide better moisture removal and comfort during...

Was:

Now: $33.99

RRP: $47.59 | Save: $13.60

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OMM

Core+ Hoodie

Weighs

182g

Weighs:

182g (Medium)

Insulation Level:

Moderate Insulation

Zip length:

No Zip

Hooded:

Yes

Baselayer Fabric:

Synthetic

Baselayer Fit:

Athletic/Close Fit

UOG TOP PICK— OMM's Core+ Hoodie is a superlight base/midlayer using Primaloft ACTIVE 125g to reduce weight to a third that of conventional fleece products. A Top Pick OMM says A new concept in active insulation, the OMM Core Range is made enti…

Was:

Now: $142.79

RRP: $149.59 | Save: $6.80

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Montane

Malli Long Sleeve Zip T-Shirt

Weighs

183g

Weighs:

183g (Medium)

Baselayer Fabric:

Merino Blend

Baselayer Fit:

Athletic/Close Fit

Neck Style:

Zip Neck

We're working out what we think - we'll add our view here! Montane says: Utilising Nylon core spun technology, the Malli Long Sleeve Zip T-Shirt offers unique levels of durability alongside the natural anti-odour control, thermoregulation…

Was:

Now: $122.39

RRP: $135.99 | Save: $13.60

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Rab

Conduit Crew

Weighs

183g

Weighs:

183g (size Medium)

Baselayer Fabric:

Synthetic

Baselayer Fit:

Athletic/Close Fit

Neck Style:

Crew Neck

A soft and light base-layer for the colder months, that can also double as a lightweight fleece the rest of the year. Rab says: A thin, lightweight, crew made with 92% recycled fabric. This Thermic™ G baselayer excels in cold conditions..…

Was:

Now: $67.99

RRP: $81.59 | Save: $13.60

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Patagonia

Capilene Midweight Zip Neck

Weighs

196g

Weighs:

196g (Medium)

Neck Style:

Zip Neck

Baselayer Fit:

Athletic/Close Fit

Baselayer Fabric:

Synthetic

Our classic, go-anywhere all-around baselayer, made with 100% recycled content. The smooth, soft face makes for easy layering; hollow-core yarns and a diamond-grid back trap warm air, wick moisture and dry fast. HeiQ Fresh durable odor control keeps.…

Was:

Now: $108.79

RRP: $122.39 | Save: $13.60

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Icebreaker

Merino 200 Oasis LS Crew

Weighs

208g

Weighs:

208g (Medium)

Neck Style:

Crew Neck

Baselayer Fit:

Athletic/Close Fit

Baselayer Fabric:

100% Merino

A versatile lightweight men's merino wool baselayer t-shirt for year-round layering performance, the 200 Oasis Long Sleeve Crewe is a go-to men’s top for any day of the year. Icebreaker says Our 100% merino, 200gm Everyday Bodyfit™ tops.…

Was:

Now: $101.99

RRP: $115.59 | Save: $13.60

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Mountain Equipment

Cerrig LS Zip T

Weighs

220g

Weighs:

220g (Medium)

Baselayer Fabric:

Synthetic

Baselayer Fit:

Athletic/Close Fit

Neck Style:

Zip Neck

Quick-drying, breathable, and sustainably made, the Cerrig LS Zip T is a reliable base layer for adventurers tackling cold-weather challenges. Mountain Equipment says: A winter-weight technical tee that efficiently wicks away moisture and dries…

Was:

Now: $67.99

RRP: $74.79 | Save: $6.80

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Icebreaker

Merino 200 Oasis LS Half Zip

Weighs

240g

Weighs:

240g (Medium)

Baselayer Fabric:

100% Merino

Baselayer Fit:

Athletic/Close Fit

Neck Style:

Zip Neck

This lightweight, odour-resistant, and versatile base layer is a reliable choice for outdoor enthusiasts who face a variety of conditions. Icebreaker says: The 200 Oasis base layer range is the benchmark against which all others are judged. The…

Was:

Now: $115.59

RRP: $129.19 | Save: $13.60

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Montane

Malli Long Sleeve T-Shirt

Weighs

170g

Weighs:

170g (Medium)

Baselayer Fabric:

Merino Blend

Baselayer Fit:

Athletic/Close Fit

Neck Style:

Crew Neck

We're working out what we think - we'll add our view here! Montane says: Utilising Nylon core spun technology, the Malli Long Sleeve T-Shirt offers unique levels of durability alongside the natural anti-odour control, thermoregulation and…

Was:

Now: $101.99

RRP: $122.39 | Save: $20.40

+ Quick Add

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At Ultralight Outdoor Gear we strive to provide as much information as possible about the gear that we sell.

So you can make informed choices about the kit for your next adventure.

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Outdoor Research
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