Versatile, Ultralight Merino Comfort for Any Adventure

​A true year-round staple, the Icebreaker Unisex 150 Long Sleeve Tee is the ultimate foundation for your layering system. Crafted from Icebreaker’s premium 150-weight ultralight Merino wool, this long-sleeve crew delivers exceptional breathability and next-to-skin softness. Whether you are wearing it as a standalone shirt on a mild autumn afternoon or using it as a moisture-wicking base layer under a heavy winter shell, it actively regulates your body temperature to keep you comfortable in a wide range of climates.

​Why We Love It

​At X-Boundaries, we consider a high-quality lightweight Merino long-sleeve to be the single most important piece of clothing in any traveler's bag. We love this specific tee because of its highly versatile unisex fit, which looks great on anyone and layers effortlessly. Thanks to Merino wool's natural ability to resist odors and manage moisture, you can wear this shirt for days on end during long treks or multi-city trips without needing to wash it.

​Key Features

• ​150 Ultralight Merino: Made with superfine Merino wool that feels incredibly soft against the skin without the itchiness of traditional wool.
• ​Temperature Regulating: Naturally adapts to your body's microclimate, trapping heat when it is cold and dumping excess warmth when you start to sweat.
• ​Naturally Odor-Resistant: Merino fibers naturally repel bacteria, keeping you smelling fresh even after multiple days of continuous wear.
• ​Versatile Unisex Fit: Designed with a relaxed, universally flattering cut that provides excellent mobility and comfort for all body types.
• ​Moisture-Wicking: Actively pulls sweat away from your skin, drying quickly to prevent you from feeling clammy or cold when you stop moving.

​Technical Specifications

• Material: 100% Merino Wool
• Fabric Weight: 150 Ultralight
• Fit: Regular / Unisex
• Style Number: #IB0A56RR
• Best Use: Base Layering, Hiking, Travel, Everyday Wear

Care & Maintenance

​To preserve the natural performance and lifespan of your Merino wool, follow these simple care instructions:

• ​Washing: Machine wash cold (30°C) on a normal or gentle cycle with similar colors.
• ​Drying: Line dry in the shade. Do not tumble dry, as high heat can shrink the garment and damage the fine wool fibers.
• ​Treatments: Do not use bleach. Strictly avoid fabric softeners, as they coat the Merino fibers and destroy their natural ability to wick moisture and resist odors. Do not dry clean.

​The X-Boundaries Guarantee

​Every Icebreaker item sold through X-Boundaries is 100% authentic, sourced directly from the brand. Shop with confidence knowing you're getting genuine quality backed by our commitment to service.