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…

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 …

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..…

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..…

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…

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…

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...

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…

A super soft and silky base layer providing comfort whatever your doing with Polygiene odour control to keep you feeling fresh. Patagonia says Soft, quick-drying and stretchy, our Capilene® Cool Daily is our most versatile performance knit for..…

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 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.…

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...

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..…

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 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…

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.…

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 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...

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…