A practical and comfortable trekking shirt built for long mileage and varied conditions.Mammut says:The classic hiking shirt designed for ultimate versatility, the Lenni is an easy choice on short day hikes and long trekking trips alike. The latest iteration of this best-selling shirt delivers all the features you know and love with a new, low-impact material. The high-performance, lightweight fabric is 91% recycled polyester, fast drying and easy to care for. HeiQ Fresh technology reduces odors to ensure the Lenni never lets you down, even on the most grueling tours. Stash your map or passport in the front pocket and take to the trail in this timeless piece of hiking kit. All Mammut products purchased within the Europe come with an extended 30-month warranty period. For more details click here.Our VerdictThe updated Lenni Longsleeve Shirt at 157g (Medium), keeps its classic feel while shifting to a more sustainable fabric. The recycled polyester dries quickly, breathes well, and retains its shape even after repeated use. Its cut for a regular fit, and the movement fold at the back makes a noticeable difference when reaching or scrambling.The HeiQ Fresh treatment helps manage odour during extended wear, and the UPF protection offers added peace of mind in exposed terrain. A single-buttoned chest pocket handles small essentials, and the shirts low bulk makes it easy to pack or layer.- Reviewed by Ultralight Outdoor GearFeaturesLightweight and quick-dryingTreated with HeiQ Fresh FFL – a bio-based technology that reduces unpleasant odorsReliable protection from strong sunlightChest pocket with buttonMovement fold on back for extra comfortSpecificationsSmall weighs: 150gMedium weighs: 157gLarge weighs: 167gXLarge weighs: 176gMaterial & ConstructionFace Material (B2B): 100% Polyester (recycled)HeiQ FreshHelp & advice:Recycled Content in Outdoor Gear

A practical and comfortable trekking shirt built for long mileage and varied conditions.Mammut says:The classic hiking shirt designed for ultimate versatility, the Lenni is an easy choice on short day hikes and l