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Phase Series: Moisture wicking base layer | SV: Severe Weather. Moisture-wicking base-layer with through-the-crotch zip, constructed using odour-control fabric; Ideal as mid-level insulation during aerobic activities
Our heaviest weight base layer bottom in the Phase™ family, appropriate for cold temperatures and high output activities. Featuring comfortable anatomical shaping and mid-level insulation, these super-wicking base layer bottoms with through-the-crotch zip are ideal for cold days in the alpine and pair well with the Alpha SV Bib CZ. Engineered for superior moisture management and rapid dry-times during stop-and-go activities, these form-fitting pants keep the user drier and more comfortable. Hybrid mapping of Phasic™ SV (in the body) and Phasic™ AR (in the panels) fabrics in addition to the textile’s construction and next-to-skin fit eliminates excess bulk and rapidly transfers moisture for efficient evaporation and improved temperature regulation and layering. Encapsulated silver-ion fibres provide durable and long-lasting odour control. Regular cut has 32” inseam.
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Arc'teryx Fit Guide - Next to Skin Fit
These snugly-fitting garments are made with stretch fabrics to fit next to the skin to enhance moisture management and thermal efficiency.Used for base layers which integrate well with Expedition, Trim, Athletic and Relaxed Fit.
To find out how to calculate your body measurements, view our Sizing Charts:
Moisture wicking base layer for interval activities.
SV | Severe Weather
Employs the most durable materials for prolonged use and provides the most weather protection in the harshest weather conditions.
Full Feature List
Minimal odour retention
Odour-control fabric treatment
Hydrophobic materials will not absorb water
Mechanical stretch textile for unrestricted mobility
Flatlock construction improves next-to-skin comfort
Anatomical shaping for fit and comfort
Zippers & Fly Configuration
Waist & Belt Configuration
Comfort waistband with laminated, soft-brushed finish
Logos & Label Configuration
Inseam Length (cm)
76 cm inseam
Phasic™ AR—87% polyester, 13% polypropylene, UPF 50+, 145 g/m². Double knit textile with mechanical stretch composed of multi-dimensional polyester yarns that wick moisture laterally to dry quickly, plus polypropylene yarns that have silver-ion encapsulated into the fibre for long-lasting odour control. The smooth outer face is durably pill resistant and a lightly lofted interior adds light insulation.
Phasic™ SV—92% polyester, 8% polypropylene, UPF 50+, 150 g/m². Double knit textile with mechanical stretch composed of multidimensional polyester yarns that wick moisture laterally to dry quickly, plus polypropylene yarns that have silver-ion encapsulated into the fibre for long-lasting odour control. The interior fabric is a combination of polyester and polypropylene and slightly lofted for mid-level insulation, while the face is 100% polyester, smooth and durably pill resistant.