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.…

The Outdoor Research Echo Hoodie is an ultralight, multi-season staple, perfect for everything from summer hikes to winter layering. Outdoor Research says:  The Echo Hoodie is built from bluesign®-approved and recycled materials and is perfe…

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 - 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..…

The Rab Sonic Hoody is a lightweight, breathable, and quick-drying mid-layer for active mountain pursuits. It provides insulation, sun protection, and moisture-wicking properties. The stretchy fabric and trim cut allow for unrestricted movement. It's…

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…

We're working out what we think - we'll add our view here!  Mammut says:  For everything from fast-and-light outings to multi-day trips. When worn as a base layer, the breathable Polartec® Power Dry™ fabric wicks away moisture for…

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...

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…

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…

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.…

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.…

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..…