Rho SV Zip Neck Mens's 2026Our warmest base layer top, designed for cold weather and easy wear. The Rho SV Zip Neck is our warmest, most technical base layer yetconstructed to keep you comfortable without creating bulk. The synthetic, hollow core fleece is breathable during high output ascents and descents, while the zip neck and extended collar provide an option for extra ventilation or additional coverage, depending on what the conditions call for. Tech Specs Technical
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