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For undergarments that undergo thorough and rigorous testing, in order to bring out the best in women’s base layers, shop ACAI.
Fend off the cold by wearing our female base layers as everyday wear and stay safe in the knowledge that the next to skin comfort is second to none.
Choose from Thermal Seamless Base Layer Tops, Tights and Leggings to stay cosy whilst camping or exploring. Knitted using the latest NILIT heat yarn technology, ACAI’s women’s base layers are packed with performance features. Additional base layers also come in the form of the Bamboo Hike Bra and Breathe Vest too, for outdoor style like no other.