Size 3XL: chest 70 cm, neck 44 cm, back 55 cm snug cut-measure twice, pick the larger if unsure and always trust chest first. Premium 95 % cotton, 5 % spandex jersey breathes like a second skin, pulls sweat away and stretches with every sprint, roll or stretch. Long sleeves guard against thorns, claws, bugs and post-op stitches ribbed hem slips over the head in one smooth motion yet stays put during zoomies. Lightweight knit warms in winter when layered, cools in summer by shading the skin, traps loose hair in spring and autumn, doubles as soft nightwear and stops licking so wounds heal faster. From sofa naps to beach sprints, this tee moves quietly under backpacks or harnesses, packs small, washes easy and keeps its shape-one shirt, every season, every adventure.