Designed for cold-weather adventures and active layering, the Rab Men's Syncrino Leggings combine lightweight warmth, breathability and moisture-wicking performance. Made from Syncrino™ 125 fabric, a blend of Merino wool and polyester containing recycled fibres, these thermal baselayer leggings provide natural temperature regulation, odour resistance and quick-drying comfort. With a stretchable construction, low-bulk seams and a gusseted crotch for improved mobility, they are ideal for hiking, trekking, mountaineering and winter travel.

Features

• Syncrino™ 125 Fabric – Lightweight Merino wool and polyester blend provides warmth, breathability and effective moisture management during cold-weather activities.

• Merino Wool Comfort – Naturally soft and insulating fibres help regulate body temperature and maintain comfort, even in damp conditions.

• Quick-Drying Performance – Synthetic fibres improve drying speed and moisture management, making the leggings suitable for active use and multiday adventures.

• Natural Odour Resistance – Merino wool helps reduce odour buildup during extended wear.

• Lightweight Insulation – 125gsm fabric provides a breathable first layer without unnecessary bulk.

• Stretchable Construction – Flexible fabric supports natural movement during hiking, climbing and outdoor activities.

• Gusseted Crotch – Additional fabric panel improves mobility and comfort during high-movement activities.

• Flat Elasticated Waistband – Deep, moisture-wicking waistband provides a secure and comfortable fit.

• Low-Bulk Merrow Seams – Smooth seam construction helps minimise friction and discomfort when layering.

• Single Jersey Construction – Lightweight knitted fabric offers a soft feel against the skin.

• Recycled Synthetic Fibres – Contains 32% recycled polyester fibres to reduce reliance on virgin materials.

Specifications

Warmth & Performance

Syncrino™ 125 Merino Wool Blend Technology

The Rab Men's Syncrino Leggings feature Syncrino™ 125 fabric, combining the natural insulating properties of Merino wool with the durability and quick-drying performance of synthetic fibres.

Merino wool helps regulate body temperature, manage moisture and maintain warmth even when damp. The polyester fibres improve durability, shape retention and drying speed, creating a lightweight baselayer suitable for demanding outdoor activities.

With its breathable 125gsm construction, the fabric provides comfortable next-to-skin insulation without excessive bulk, making it ideal for layering beneath hiking trousers or insulated outerwear in colder environments.

Sustainability

Merino Wool & Recycled Polyester Blend

The Syncrino™ 125 fabric contains 47% Merino wool and 53% polyester, including 32% recycled polyester. By incorporating recycled synthetic fibres, Rab helps reduce reliance on virgin polyester while maintaining the durability, moisture management and lightweight performance needed for technical outdoor baselayers.

Care Instructions

• Machine wash cold on a gentle or wool cycle

• Use mild detergent suitable for wool garments

• Wash with similar colours

• Do not bleach

• Air dry naturally

• Avoid tumble drying at high temperatures

• Do not use fabric softener

• Avoid excessive heat to help maintain fabric performance