Gruezi Bag Alvra Summer Shirt

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Light, breathable, and ideal for warm, dry days, the Alvra Summer Shirt keeps things simple while quietly doing its job well.

Mammut says: 

A breathable, short-sleeved summer shirt for warm-weather outdoor exploring. Thanks to a soft, responsibly sourced hemp-Lyocell blend, you don’t have to worry about overheating in this warm-weather gear. The natural fiber blend offers fantastic temperature regulation and moisture-wicking abilities, cooling you down as you start to warm up. Plus, the short sleeves and rolled-up hems encourage airflow. The Alvra Summer Shirt is the ideal choice for laid-back days in the outdoors.

All Mammut products purchased within the Europe come with an extended 30-month warranty period. For more details click here.

Our Verdict

The latest version of Mammut’s Alvra Summer Shirt remains a solid pick for low-key days on trail or off. The hemp and lyocell blend (186g in size M) feels soft and natural against the skin, with enough airflow to stop things getting clammy when the sun’s out. It does a surprisingly good job managing moisture, better than many synthetic shirts I’ve worn—and the temperature regulation is one of its standout features. It’s not trying to be a technical layer, and that’s what I like about it: no fuss, no overthinking, just an easy shirt that works.

It’s not something I’d reach for in high-output or changeable weather, but it really shines on hot days when you’re moving steadily and want to stay comfortable. It’s a relaxed shirt with just the right amount of performance woven in.

– Reviewed by Ultralight Outdoor Gear

Features

• Soft, breathable and temperature-regulating hemp-Lyocell blend
• Chest pocket with button

Specifications

• Small weighs: 175g
• Medium weighs: 186g
• Large weighs: 201g
• XLarge weighs: 213g

Material & Construction

• Face Material (B2B): 55% Hemp, 45% Lyocell
• bluesign® PRODUCT
• Fair Wear

Help & advice:

• Recycled Content in Outdoor Gear