Leatt Jersey MTB Endurance 4. 0 Long Sleeve Built For Cooler Rides The Leatt Endurance 4. 0 Long Sleeve Jersey is built for early rollouts, cool temps, and shoulder season training sessions. Made with a merino wool blend fabric, it is naturally warming and antibacterial. The slim fit and extended back panel stay put in a riding position, while a PFAS-free dirt- and water-resistant finish helps shed light rain and trail spray. A full-length front zipper lets you fine-tune airflow, while four rear cargo pockets and two zippered stash pockets give you plenty of space to carry layers, snacks, and tools. With Bluesign-approved sustainability, reflective details, and premium YKK zippers, this jersey is your go-to layer for when the weather turns chilly, but the ride doesn't stop. Features4-way stretch merino wool blend knit with natural warming and antibacterial function Flatlock seams for minimal bulk and superior comfort Full front zipper for extra ventilation when you need it4 lower back cargo pockets and 2 additional zippered pockets Reflective rear decal helps enhance visibility in low-light conditions SPECIFICATIONSMaterial Merino Wool Blend Knit Sleeve Length Long Sleeve Closure Type Full Zipper Fit Form Fitting Intended Use Cooler Weather Special Features Numerous Pockets, Reflectivity Sizing Size Extra Small Small Medium Large Extra Large XX-Large XXX-Large Arm Length (cm)74 - 76cm76 - 78cm78 - 80cm80 - 82cm82 - 84cm84 - 86cm86 - 88cm Arm Length (in)30 - 30. 5"30. 5 - 31"31 - 31. 5"31. 5 - 32"32 - 33"33 - 34"34 - 35"Chest Circumference (cm)91 - 96cm96 - 102cm102 - 106cm106 - 112cm112 - 116cm116 - 122cm122 - 127cm Chest Circumference (in)36 - 38"38 - 40"40 - 42"42 - 44"44 - 46"46 - 48"48 - 50" | Leatt | Jersey Mtb Endurance 4. 0 Long Sleeve Men's | Size Medium In Lager Yellow