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Heavyweight Base Layers
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IcebreakerMerino 260 Vertex Long-Sleeve Crewe Natural Shades Base Layer Top - Men's
$104.73Save 25%compared to  $140.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETIcebreakerMerino 260 Vertex Base Layer Leggings Herenga - Women's
$140.00Underwear Weight:HeavyweightSize Type:RegularKari TraaSilja Base Layer Pants - Women's
$89.73Save 25%compared to  $120.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETIcebreakerMerino 260 Vertex Long-Sleeve Half-Zip Natural Shades Base Layer Top - Women's
$111.73Save 25%compared to  $150.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETKari TraaJuliane Wool Half-Zip Base Layer Top - Women's
$104.73Save 25%compared to  $140.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET- Top Rated
Arc'teryxRho Heavyweight Zip-Neck Base Layer Top - Men's
$99.93 - $140.00Underwear Weight:HeavyweightSize Type:Regular, Big IcebreakerMerino 260 Vertex Long-Sleeve Crewe Glacial Flow Base Layer Top - Women's
$104.73Save 25%compared to  $140.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETKari TraaSilja Half-Zip Base Layer Top - Women's
$90.73Save 30%compared to  $130.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETTerramar3.0 Thermawool Heavyweight Thermal Pants - Men's
$49.73Save 28%compared to  $70.00Underwear Weight:HeavyweightSize Type:Regular, BigREI OUTLETKari TraaRose Base Layer Hoodie - Women's
$90.73Save 30%compared to  $130.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETKari TraaLune Base Layer Pants - Women's
$48.73Save 25%compared to  $65.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETKari TraaRose High-Waist Base Layer Capris - Women's
$56.73 - $76.73Save 23% - 36%compared to  $90.00 - $100.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETSeirusHeatwave Reversible Long-Sleeve Crew Base Layer Top - Men's
$99.95Underwear Weight:HeavyweightSize Type:Regular, BigSeirusHeatwave Reversible Base Layer Bottoms - Men's
$89.95Underwear Weight:HeavyweightSize Type:Regular, BigIcebreakerMerino 260 Vertex Long-Sleeve Half-Zip Herenga Base Layer Top - Women's
$150.00Underwear Weight:HeavyweightSize Type:RegularKari TraaRose Long-Sleeve Base Layer Top - Women's
$76.73Save 30%compared to  $110.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETKari TraaSilja Long-Sleeve Base Layer Top - Women's
$89.73Save 25%compared to  $120.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETIcebreakerMerino 260 Vertex Long-Sleeve Half-Zip Glacial Flow Base Layer Top - Women's
$111.73Save 25%compared to  $150.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLETArc'teryxRho Heavyweight Zip-Neck Base Layer Top - Women's
$150.00Underwear Weight:HeavyweightSize Type:PlusPatagoniaCapilene Thermal Weight Zip-Neck Base Layer Top - Women's
$53.73Save 50%compared to  $109.00Underwear Weight:HeavyweightSize Type:RegularREI OUTLET
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