Baselayer - Long Sleeves

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 - 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..…

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…

UOG TOP PICK - 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, this breathabl…

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…

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…

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 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…

This technical tee has been designed to be an all-rounder. The soft, comfortable feel is backed up with high wicking, breathable qualities to give you a versatile top. Berghaus says Simple, classic t-shirts are always the best. Comfortable and elega…

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…

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…

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 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.…

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…

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.…

Montbell's Merino Wool Plus Light Tee combines merino wool and polyester for excellent thermal regulation and moisture management. It's odor-resistant, quick-drying, and comfortable, with flat seams and spiral cuffs. Montbell says:  Delivers wa…

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.…

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...

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…

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…

The Lifa Merino Midweight Crew is a thick and warm top that is ideal for cold conditions. It still works really well combining Merino and Helly Hansen's LIFA technology to produce a warm and breathable base layer. Helly Hansen says A unique 2-in-1 b…

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…

The Lifa Merino Midweight 1/2 Zip is a thick and warm top that is ideal for cold conditions with the added benefit of the deep zip for venting heat. The benefits of natural merino are on full display with this piece of kit. Helly Hansen says A uniqu…

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..…

This incredibly soft and warm base layer is only appropriate in very cold conditions. This is a close-fitting base layer that hugs and conforms to your body. Helly Hansen says LIFA® MERINO MIDWEIGHT is perfect for any type of activity in cold...

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…