Size 3XL: chest 70 cm, neck 44 cm, back 55 cm snug cut—measure twice, pick the larger if doubtful 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 enough for summer shade, cozy enough for winter layering, the shirt steadies body temperature, traps loose hair and doubles as calming sleepwear. From couch to campsite, it blocks Uv, cuts wind and keeps your house fur-free while you walk, hike, train or nap.