Dynafit Speed Dryarn S/S Tee - Magnet (Men's, L)

Engineered with Dryarn® polypropylene, this Dynafit Speed Dryarn S/S Tee weighs just 90 g (size M) and wicks moisture faster than any synthetic baselayer in its class. For trail runners and mountaineers who demand zero distraction, the seamless athletic fit and 4-way stretch move with you like a second skin.

Overview

The Dynafit Speed Dryarn S/S Tee is a technical short-sleeve shirt built for high-output mountain sports. Its primary fabric, Dryarn®, is a high-performance polypropylene yarn that offers the lowest thermal conductivity and highest moisture transfer of any textile fiber. Combined with 11% elastane, the shirt delivers exceptional stretch and recovery, maintaining its shape through thousands of wear cycles. The seamless construction eliminates chafing and irritation, while the crew neck provides a classic, non-restrictive fit.

What stands out

• Dryarn® fabric: 89% polypropylene, 11% elastane – dries 3x faster than polyester and is naturally bacteriostatic.
• Seamless knit: zero side seams or shoulder seams for chafe-free comfort under a pack or harness.
• 4-way stretch: unrestricted mobility for climbing, scrambling, and dynamic movement.
• Anti-odor treatment: stays fresh on multi-day adventures; machine washable.
• Ultra-light: approximately 90 g (size M) – packs down to the size of an apple.

Technical details

• Material: 89% polypropylene (Dryarn®), 11% elastane
• Fit: Athletic
• Sleeve length: Short sleeve
• Neckline: Crew neck
• Breathability: High
• Moisture wicking: Yes
• Quick drying: Yes
• Stretch: 4-way
• Construction: Seamless
• Intended use: Trail running, hiking, mountaineering, training
• Color: Magnet (dark grey with subtle heathered texture)
• Size: L
• Care: Machine washable

Our verdict

The Dynafit Speed Dryarn S/S Tee is a top-tier baselayer for athletes who prioritize weight, breathability, and next-to-skin comfort. Its Dryarn® fabric outperforms traditional synthetics in moisture management and odor control, making it a reliable choice for long days in the mountains. While it lacks UPF rating, its dense knit provides decent sun protection. For fast-and-light missions, this tee is a standout.