Stio Hylas Hooded Pullover Score Card

Sun Protection Hoodie

Stio Hylas Hooded Pullover

Gear Score Card

The Feather & Arrow

Date: June 2026

Stio Hylas Hooded Pullover

Overall Rating

9.1

out of 10.0

Weight

198g (men's medium)

Performance Scores

Weight

9.1

At 198g in a men's medium, the Hylas Hooded Pullover sits 14% below the category average of 230g. Merino-blend construction delivers meaningful mass reduction without sacrificing coverage.

Feather Index
Signature

9.1

Achieves 86% relative weight versus category average. Top 12% of evaluated sun protection hoodies with full UPF 50+ coverage and long-sleeve construction.

Arrow Efficiency Score
Signature

8.9

The 32g weight savings over category average reduces pack weight meaningfully on multi-day routes. Merino thermoregulation reduces the need for additional layering pieces.

Sun Protection

9.3

UPF 50+ rating across the full garment including hood. Manufacturer-rated protection blocks 98%+ of UV radiation. Extended hood coverage protects neck and ears on exposed ridgelines.

Moisture Management

9.0

Merino-blend construction wicks moisture away from skin and dries faster than 100% merino alternatives. Odor resistance reduces washing frequency on extended trips.

Packability

8.8

Compresses to approximately 1.2L packed volume. No integrated stuff sack, but packs efficiently into a jacket pocket or top-lid compartment.

Comfort & Fit

9.2

Merino-blend fabric delivers next-to-skin softness with minimal itch. Articulated patterning allows full range of motion for scrambling and technical hiking.

Value

8.7

Premium merino-blend construction at a competitive price point for the category. Durability and odor resistance extend garment lifespan. Visit our affiliate links to check current pricing.

Technical Specifications

Weight
198g (men's medium)
Fabric
Merino-blend (merino/nylon)
UPF Rating
UPF 50+
Fit
Active fit
Hood
Fitted hood with face opening
Pockets
Zippered chest pocket
Thumbholes
Yes
Sizes
XS–XXL (M/W)
Origin
Designed in Jackson, WY

Expert Verdict

The Stio Hylas Hooded Pullover delivers a refined merino-blend formula for sun protection in mountain environments. At 198 grams, it achieves meaningful weight savings over heavier synthetic alternatives while the merino-blend construction provides natural odor resistance — a critical advantage on multi-day routes where pack weight and hygiene both matter. The UPF 50+ rating across the full garment, including the fitted hood, provides reliable protection on exposed alpine terrain. Articulated patterning accommodates the full range of motion required for technical scrambling without binding. The merino-blend dries faster than pure merino, addressing the primary performance gap of natural fiber hoodies. For hikers and alpinists who prioritize lightweight sun protection with natural fiber comfort, the Hylas Hooded Pullover is a well-engineered choice.

The Feather & Arrow Collective | Independent Evaluation. Intelligent Analysis.

Data Sources: All specifications, weights, and performance data are sourced exclusively from manufacturer published specifications, technical documentation, and peer-reviewed materials science research. No independent physical testing was conducted. Scores reflect comparative analysis of manufacturer data relative to category averages.