Baselayer - Long Sleeves

All season, all mountain technical next to skin layer for your fastest and lightest missions Montane says:  Adaptable high performance next to skin layer for pinnacle moisture management, the Dart Nano Long Sleeve T-shirt uses 100% recycled and.…

Breathable, featherlight, and built for movement in the height of summer. Montbell says: Made of the lightest knit t-shirt fabric in Montbell's lineup and designed for intense workouts, high-output days on the trail, or activities during the hottest.…

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…

The Core Hoodie is a minimalist piece designed for active insulation. It adds warmth but is highly breathable and focused on wicking moisture and regulating body temperature when exercising. OMM says A new concept in active insulation, the OMM Core.…

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 …

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 …

We're working out what we think - we'll add our view here!  Patagonia says:  Our most versatile technical top is built for use on the trail or on the water: It’s quick drying, has stretch for mobility and comfort, plus HeiQ® Mint …

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..…

We're working out what we think - we'll add our view here!  Rab says:  Lightweight running zip tee that provides rapid drying, fast wicking, and efficient movement. Built with Dryflo™ Air with odour control technology, it's designed f…

We're working out what we think - we'll add our view here!  Rab says:  Bringing a light, airy feel to your fast hikes and mountain runs, this lightweight zip tee dries fast and keeps you cool. Crafted with Dryflo™ Air with odour contr…

UOG TOP PICK:  Light, tough, and highly breathable, the Mammut Eiger Nordwand FL Longsleeve wicks fast, resists odour, and endures pack wear — a top choice for demanding, high-output days in the mountains. Mammut says:  For everything…

A staple in Montane's iconic Dart range, this long-sleeved T-shirt continues to deliver reliable performance and comfort for year-round mountain adventures. Montane says:  The Dart Long Sleeve T-Shirt is a classic, all-season, all-mountain techn…

Lightweight, long-sleeved top for hiking and outdoor life in warm, sunny climates. Produced without PFCs, made for a lifetime of use. Fjallraven says:  Lightweight, functional long-sleeved top for men that is suitable for outdoor life and...

UOG TOP PICK - L/S Capilene Cool Merino Graphic Shirt Soft, comfortable, next-to-skin blended fabrics, do a fantastic job of wicking moisture. It dries fast, whilst naturally regulating your temperature, and keeps you smelling fresh, one of our top..…

We're working out what we think - we'll add our view here!  Patagonia says:  An all-around tech tee made to wick moisture and stretch as you move, with silky fabric that feels cool even when the air is hot. With HeiQ® Mint odor control …

We're working out what we think - we'll add our view here!  Patagonia says:  Our most versatile technical top is designed for use on the trail or on the water: It’s quick drying, has stretch for mobility and comfort, and HeiQ® Min…

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…

We're working out what we think - we'll add our view here!  Patagonia says:  Artist Vernan Kee created our Cloud Crag graphic, which shows the Fitz Roy massif from the clouds. We screen-printed the artwork on our Men's Long-Sleeved...

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…

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 lightwe…

A midweight long-sleeve Zip-T for all mountain use Mountain Equipment says:  This versatile and fast drying Zip-T can be used as a wicking next-to-skin layer year round. With Polygiene anti-microbial technology it resists odour on long trips and…

We're working out what we think - we'll add our view here!  Patagonia says:  Our most sun-protective tech tee offers 40+ UPF coverage with wicking and fast-drying performance. Single-knit construction generates a naturally sun-protective ef…

We're working out what we think - we'll add our view here!  Rab says:  Ideal for covering up and keeping cool in hot, sunny weather, this breathable long-sleeved tee is made with UV-protective Dryflo™ Solar fabric to shield you from..…

We're working out what we think - we'll add our view here!  Inov8 says:  Hike all year round in the MERINO LONG SLEEVE HIKING T-SHIRT. This highly versatile top is ideally used as a hiking base layer, where it can be worn on its own, or und…

UOG TOP PICK: The Astroman Air Sun Hoodie offers UPF 30+ or 50+ protection, breathability, and moisture-wicking properties. It's versatile and well-suited for multi-day hikes, keeping you cool and comfortable during outdoor activities. A Top Picks fo…

This technical tee has been designed to be an all-rounder with the addition of the half length zip. The soft, comfortable feel is backed up with high wicking, breathable qualities to give you a versatile top. Berghaus says Simple, classic t-shirts a…

The Alpenglow is a technical fitting base layer that offers comfortable fit and protection from overheating with the BD.cool technology, making it perfect for climbing and other high activity sports.  Black Diamond says:  A technical fit pa…

We're working out what we think - we'll add our view here!  Rab says:  Ideal for covering up and keeping cool in hot, sunny weather, this breathable zip tee is built with UV-protective Dryflo™ Solar fabric to shield you from harmful r…

Long-sleeved top with a half-zippered opening, designed for hiking and travelling in warm conditions. Produced without PFAS. Fjallraven says:  Long-sleeved top with a half-zippered opening that is lightweight and functional for general outdoor l…

The perfect blend of natural and synthetic fibres that includes all of the positives and non of the negatives from each.  Fjällräven says: Lightweight, long-sleeved top in a soft jersey knit made from merino wool and recycled polyeste…

Patagonia's warmest, most breathable Capilene baselayer is made with low-bulk Polartec Power Grid fabric with Polygiene permanent odor control and is Fair Trade Certified for sewing. Patagonia says:  When temperatures drop, grab this lightweight…

The OMM Bearing Tee LS is a long sleeved, full coverage technical baselayer that is high wicking with UV protection. Great for training and every day use due to the high stretch and comfort. OMM says: The long sleeve Bearing tee uses our 4 way coolp…

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.…

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...

The Mammut Tree Wool FL Longsleeve blends merino wool and Lyocell for comfort, warmth, and breathability. It's lightweight at 176 grams (medium), dries faster than traditional wool, and has temperature regulation and odor-neutralizing properties. Mam…

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...

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…

UOG TOP PICK:  Lightweight, versatile, and naturally odour-resistant, the Montane Malli Long Sleeve Zip T-Shirt blends Merino comfort with synthetic durability — a top choice for adaptable mountain layering. Montane says:  Utilising N…

The Mountain Equipment Redline LS Tee offers lightweight durability, moisture-wicking, and quick-drying capabilities that are ideal for layering. Mountain Equipment says:  This comfortable long sleeved tee can be worn alone on south facing rock.…

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.…

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.…

Lightweight hooded long-sleeved sweater in a functional merino wool and polyester blend. Produced without PFAS. Fjallraven says:  Lightweight hoodie in a soft jersey knit made from ZQ merino wool and polyester. Abisko Wool Hoodie for men is the.…

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.…

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.…

UOG TOP PICK - Dart XT Zip Neck A warm, well-fitting and incredibly soft and highly mobile baselayer for winter trail running and cooler weather hiking. It's one of our favourite winter baselayers and one of our top picks! Montane says:  High...

A merino long sleeve that balances insulation with breathability for winter layering. Fjallraven says:  Light, soft and warm long-sleeved base-layer top made from 100% traceable merino wool. Produced without PFAS. Stay in tune with nature in thi…

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…

We're working out what we think - we'll add our view here!  Inov8 says:  Hit the trails in the MERINO HIKING HOODIE HZ, the perfect mid-layer for colder weather and transitional seasons. Made from ethically-produced mulesing-free Merino woo…

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…

UOG TOP PICK: Top Pick for Versatility: The Black Diamond Alpenglow Pro Hoody combines exceptional sun protection, durable weather resistance, and thoughtful features, making it an essential, year-round layer for multi-day adventures. Black Diamond..…

UOG TOP PICK:   Soft, durable, and naturally breathable, the Montane Malli Long Sleeve T-Shirt combines Merino comfort with synthetic strength — a top choice for mountain layering and multi-day wear. Montane says:  Utilising Nylo…