evo.com | Mons Royale Long Underwear Tops > The Mons Royale Olympus Merino Base Layer 1/4 Zip Long-Sleeve Top brings serious warmth without the bulk, making it a go-to for cold days in the mountains. Strategic mesh panels boost breathability when the pace picks up, while naturally moisture- and odour-managing Merino wool keeps things comfortable from first lap to last. With a slim, performance-focused fit, it layers easily under a shell and keeps riders warm through long days in the backcountry. Underarm and Collar Mesh Panels Merino Wool Regulates Temp, Resists Odour and Dries Fast 96% Merino Wool, 4% Elastane High Neck with Quarter Zip for Added Warmth Slim Fit | Women's Mons Royale Olympus Base Layer 1/4 Zip Long-Sleeve Top 2027 - X-Small Purple | Wool/Elastane