Mammut Tree Wool Longsleeve Performance Tee

Mammut
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Regular price $7900
Regular price Sale price $7900
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Tree Wool FL Longsleeve Performance Tee

The Mammut Tree Wool T-Shirt  is your go-to layer when you want performance that feels effortless. From early morning hikes to climbing sessions and travel days in between, this tee blends natural comfort with technical capability—so you stay comfortable no matter where the day leads.

Made from a 100% natural fiber blend of merino wool and Lyocell, it delivers breathable, fast-drying performance with excellent temperature regulation. It naturally resists odor, so you can wear it longer between washes—ideal for multi-day adventures or active travel. The relaxed fit and underarm gusset give you unrestricted movement, whether you’re reaching for holds, hiking uphill, or just moving through your day with ease.

IDEAL FOR
Hiking & trekking
Climbing & alpine approaches
Ski touring & travel

Why You’ll Love It

  • Naturally Breathable & Odor-Resistant – Merino wool keeps you fresh on long, active days.
  • Fast-Drying Comfort – Performs better than traditional wool in changing conditions.
  • Freedom to Move – Underarm gusset supports dynamic movement and layering.
  • Sustainably Sourced – Includes RWS-certified wool and biodegradable Lyocell fibers.
  • Versatile Performance Fit – Relaxed cut works on the mountain and in everyday life.

Fabric & Fit Details

  • Material: Merino wool & Lyocell (100% natural fiber blend)
  • Fit: Regular fit
  • Weight: 125 g
  • Features: Underarm gusset, breathable, quick-drying, odor-neutralizing
How It Fits

True to size - relaxed fit

Shipping & Returns

Free Shipping on orders over $99 - standard ground delivery 3-5 business days.

Local Pickup available in Reno-Tahoe.

Easy Returns take up to 90 days to decide and return unworn with tags & packaging.

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From Our Customers

★★★★★

Great Product! The coziest puffy jacket from Rab. Super lightweight too. I will definitely buy again!

Sarah E. Los Angeles, CA
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I bought the down slippers for my sister and she absolutely loves it! Thank you Alpinistas for great customer service and delivery on time!

Diana K. Atlanta, GA
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The best customer service! I needed help on selecting the right size. They gave me advice based on my body type and loved the selection. Definitely recommend.

Genie H. Charlotte, NC
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Lovely patterns and quality.

Kathrine S. Reno, CA
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