An ideal top for high-output days when breathability and fast drying matter most.Rab says:Whether youre squeezing in a morning training run or on a multi-day mountain epic, this breathable running tee is designed to keep you comfortable, sweat-free, and moving efficiently. Weve positioned high-wickingMotivAerofabric across the back to effectively expel moisture when youre working an incline, while more protective yet highly breathableMotivfabric has been used in the front. With a tailored running fit allowing you to make smooth progress in the face of a headwind, the Trail Tee is geared up for travelling at pace over rocky fells.Our VerdictBuilt for speed and sweat, the updated Rab Trail Tee is a lightweight layer that shines when you move fast and work hard.Weighing just 86g (UK12), the 2024/25 version uses two types of Motiv fabric to manage heat and moisture more effectively more open at the back where you tend to sweat, and more protective up front. Its a thoughtful design tweak that helps during challenging climbs and exposed ridgelines. The slim cut hugs the body without restricting movement, and the raglan sleeves keep it comfortable across the shoulders under a pack.I found the fit on the tighter side, so it might be worth sizing up if you’re between sizes. The material feels very light great for breathability, though slightly more delicate. Still, the comfort is excellent, with flat seams and no rubbing, even during sustained effort.- Reviewed by Ultralight Outdoor GearFeaturesLightweight fast wicking fabric with bulk yarn technologyMicroactive seams are strong and soft inside for comfortRaglan sleeve for added movementSpecificationsUK 8 weighs: 73gUK 10 weighs: 80gUK 12 weighs: 86gUK 14 weighs: 94gCentre back length (Size 10): 62.5cm / 24.6inMaterial & ConstructionMotiv single jersey (105gsm) with odour control treatment56% Polyester (Recycled), 44% PolyesterHelp & advice:About RabThe Ultimate Guide to Lightweight BaselayersRab Sustainability and Responsibility

An ideal top for high-output days when breathability and fast drying matter most.Rab says:Whether youre squeezing in a morning training run or on a multi-day mountain epic, this breathable running tee is d