SUMS Ascenders Socks Size:Large ‧ Side and foot zippers

‧ Side and foot zippers can be opened to use as a down quilt

Additional care instructions:soft bru

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Näak Ultra Energy™ science was developed to meet the specific needs of ultra distance athletes

SUMS Ascenders Socks Size:Large ‧ Side and foot zippersUnisex. Co developed with Tom Evans. Built for heavy mileage, hot and cold climates as well as sharp ascents and descends. Tailored through hundreds of test miles to balance compression and flexibility, cushioning and breathability, lightness and durability. Medium compression, anti blister cushioning, breathable mesh and zero slip arch band support. Sizing Size S = UK 4 7 EU 36 40 US 5 8 Size M = UK 8 10 EU 41 44 US 9 11 Size L = UK 10. 5+ EU 45+ US