Ronhill Tech All-Terrain Jacket Blue

Ronhill Tech All-Terrain Jacket – what “wind resistant” and “water resistant” mean in practice

The Ronhill Tech All-Terrain Jacket is an ultra-light shell designed to protect you when the weather changes in the mountains or in exposed areas, without weighing you down. Ronhill describes it as Wind resistant and Water resistant, weighing under 100 grams with an exceptionally small pack size.

Wind-resistant protection – where the Tech All-Terrain excels

The wind-resistant function of jackets of this type relies on fabric with low air permeability, helping to reduce wind chill in windy conditions. For running, this means:

• More stable core temperature in exposed areas (summits, seafronts, open fields).
• Less heat loss when you sweat and are then exposed to the wind.
• Better pacing on climbs and descents, as there is less need to continually adjust your layers.

Ronhill enhances practical wind protection with fit details such as a roll-away hood (a hood that packs away when not needed) and a construction designed for movement across varied terrain. The result is a jacket that blocks the wind without becoming bulky.

Water-resistant protection – what it covers and what it does NOT cover

This is the key point: the Tech All-Terrain is water resistant, not fully waterproof. This means:

• It handles drizzle, light rain or splashes, helping the fabric repel water for a period of time.
• It is not intended for prolonged heavy rain or conditions requiring a specified measurable waterproof rating (e.g. high HH and fully taped seams).

Simply put: it is the jacket that gets you through a short mountain shower or damp/foggy conditions, but it does not replace a dedicated race waterproof jacket.

Why Ronhill keeps it so lightweight: the logic of an “emergency shell”

When a jacket is <100 g, the design priority is to ensure you always have with you basic protection from wind/drizzle, without sacrificing space or adding weight to a running vest or belt. This is why the model features:

• Self-packable pocket with hand strap so it packs down very small and is easy to carry.
• Venting tab to adjust ventilation as your pace increases.
• Reflective details for improved visibility in low light.
• Secure pocket and key loop for essentials.

When to choose it (and when to opt for a fully waterproof jacket)

• Ideal for: trail/hill runs, training in windy conditions, cool weather, transitional days, or as an emergency layer at the summit or on the return.
• Not for: continuous heavy rain, prolonged severe weather or conditions requiring specific waterproofing standards (e.g. fully taped seams and a high measurable waterproof rating).

Technical features (as stated by Ronhill)

• Wind resistant
• Water resistant
• Lightweight (Super Lightweight / <100 g reference within the range)
• Self-packable pocket with hand strap
• Roll-away hood
• Venting tab
• Reflective details
• Secure pocket + Key loop
• Relaxed fit
• Made from recycled yarns