{"product_id":"helly-hansen-lifa-active-crew-base-layer-b0ckxg19wh","title":"Helly Hansen Men's LIFA Active Crew Base Layer","description":"\u003cstyle\u003e\n.vn-pdp-body{line-height:1.6}\n.vn-pdp-body p{margin:0 0 14px}\n.vn-pdp-ad-label{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:#6b6b6b;margin:0 0 6px}\n.vn-pdp-intro{margin:0 0 20px}\n.vn-pdp-intro__hero-line{font-size:1.25em;font-weight:600;margin:6px 0 8px;color:#111}\n.vn-pdp-intro__promise{font-size:1.15em;margin:6px 0 14px}\n.vn-benefit-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin:20px 0}\n.vn-benefit{box-sizing:border-box;flex:0 1 calc(25% - 10.5px);border:1px solid #e4e4e4;border-radius:10px;padding:14px 16px;font-size:.97em;line-height:1.5}\n@media (max-width:900px){.vn-benefit{flex-basis:calc(50% - 7px)}}\n@media (max-width:520px){.vn-benefit{flex-basis:100%}}\n.vn-benefit strong,.vn-benefit-list strong{color:#a15c07}\n.vn-benefit-list{margin:16px 0;padding-left:22px}\n.vn-benefit-list li{margin:0 0 10px;line-height:1.55}\n.vn-pdp-section{margin:28px 0}\n.vn-pdp-section h3{margin:0 0 10px}\n.vn-pdp-section p{margin:0 0 14px}\n.vn-image-copy-group{display:flex;flex-wrap:wrap;justify-content:center;gap:24px;margin:28px 0}\n.vn-image-copy{box-sizing:border-box;flex:0 1 calc(50% - 12px);display:flex;flex-direction:column;gap:14px;border:1px solid #e4e4e4;border-radius:10px;padding:14px}\n.vn-image-copy img{width:100%;height:auto;border-radius:8px;display:block}\n.vn-image-copy__body{flex:1 1 auto}\n@media (max-width:700px){.vn-image-copy{flex-basis:100%}}\n.vn-image-copy__body h3{margin:0 0 8px}\n.vn-sizing{margin:28px 0}\n.vn-sizing table,.vn-spec-table table{width:100%;border-collapse:collapse;margin:12px 0}\n.vn-sizing td,.vn-sizing th,.vn-spec-table td,.vn-spec-table th{border:1px solid #e4e4e4;padding:8px 10px;text-align:left;font-size:.95em}\n.vn-spec-table{margin:28px 0}\n.vn-callout{border:1px solid #e2e2e2;border-radius:10px;padding:18px 20px;margin:28px 0;background:#fafafa}\n.vn-callout h4{margin:0 0 10px;font-size:1.05em}\n.vn-callout p{margin:0 0 10px}\n.vn-callout p:last-child{margin-bottom:0}\n.vn-callout--emphasis{border:1px solid #d97706;background:#fff8ec}\n.vn-faq{margin:28px 0}\n.vn-faq__item{margin:0 0 16px}\n.vn-faq__item dt{font-weight:600;margin:0 0 4px}\n.vn-faq__item dd{margin:0}\n.vn-affiliate-cta-slot{margin:22px 0;text-align:center}\n.vn-affiliate-cta-img{display:inline-block;line-height:0;border-radius:8px;transition:transform .18s ease,filter .18s ease}\n.vn-affiliate-cta-img img{display:block;width:280px;max-width:100%;height:auto;margin:0 auto}\n.vn-affiliate-cta-img:hover{transform:translateY(-2px);filter:brightness(1.08) drop-shadow(0 6px 10px rgba(0,0,0,.18))}\n.vn-affiliate-cta-img:active{transform:translateY(0);filter:brightness(.97)}\n.vn-affiliate-cta-img:focus-visible{outline:2px solid #ff9900;outline-offset:3px}\n@media (prefers-reduced-motion:reduce){.vn-affiliate-cta-img{transition:none}.vn-affiliate-cta-img:hover{transform:none}}\n.vn-affiliate-cta-slot__line{font-size:.9em;color:#555;margin:8px 0 0}\n.vn-affiliate-cta-slot__note{font-size:.85em;color:#777;margin:4px 0 0}\n.vn-affiliate-disclosure{font-size:.82em;color:#888;margin:32px 0 0;padding-top:12px;border-top:1px solid #eee}\n\u003c\/style\u003e\n\u003cdiv class=\"vn-pdp-body\"\u003e\n\u003cp class=\"vn-pdp-ad-label\"\u003eAd\u003c\/p\u003e\n\u003cdiv class=\"vn-pdp-intro\"\u003e\n\u003ch1\u003eHelly Hansen Men's LIFA® Active Crew Base Layer\u003c\/h1\u003e\n\u003cp class=\"vn-pdp-intro__hero-line\"\u003eComfortable from the first mile, and Helly Hansen actually tells you why.\u003c\/p\u003e\n\u003cp class=\"vn-pdp-intro__promise\"\u003eMost \"thermal\" base layers give you an adjective and stop there. Helly Hansen builds the LIFA Active Crew as a 2-layer construction: 100% LIFA® polypropylene against your skin, a separate wicking layer outside it. The fibre doing the work is named, not implied.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vn-benefit-grid\"\u003e\n\u003cdiv class=\"vn-benefit\"\u003e\n\u003cstrong\u003e2-layer construction, named.\u003c\/strong\u003e 100% LIFA® polypropylene sits directly against your skin, with a separate wicking layer built around it to carry moisture outward, in Helly Hansen's own words.\u003c\/div\u003e\n\u003cdiv class=\"vn-benefit\"\u003e\n\u003cstrong\u003e\"Excellent moisture management properties.\"\u003c\/strong\u003e That's Helly Hansen's own verdict on what the two layers do together, published on the brand's product page.\u003c\/div\u003e\n\u003cdiv class=\"vn-benefit\"\u003e\n\u003cstrong\u003eBuilt for the miles that matter.\u003c\/strong\u003e Helly Hansen lists Trail Running alongside Resort Skiing and Ski Touring as this garment's intended use.\u003c\/div\u003e\n\u003cdiv class=\"vn-benefit\"\u003e\n\u003cstrong\u003eA bluesign® product, made with Oceanbound recycled materials.\u003c\/strong\u003e Both confirmed by Helly Hansen on its own product page.\u003c\/div\u003e\n\u003cdiv class=\"vn-benefit\"\u003e\n\u003cstrong\u003eSized S to XXL\u003c\/strong\u003e, a crew neck built to sit close against the skin the way a base layer is meant to.\u003c\/div\u003e\n\u003cdiv class=\"vn-benefit\"\u003e\n\u003cstrong\u003eHelly Hansen's own fit note:\u003c\/strong\u003e \"Customers say product fits true to size. We recommend sticking with your regular size.\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vn-image-copy-group\"\u003e\u003cdiv class=\"vn-image-copy\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0723\/3365\/6364\/files\/VCR-J-0021_cuff-detail_2048x2048_545d8307-d38c-47f4-826e-ef19abf9af5d.png?v=1790269523\" alt=\"Close-up of the LIFA Active Crew's fabric and 2-layer construction.\" loading=\"lazy\"\u003e\u003cdiv class=\"vn-image-copy__body\"\u003e\n\u003ch3\u003eThe construction, named\u003c\/h3\u003e\n\u003cp\u003eHelly Hansen describes the LIFA Active Crew as \"an advanced 2-layer construction with 100% LIFA® fiber next to skin and wicking technical fibers outside,\" and states it has \"excellent moisture management properties.\" That is a fibre you can look up sitting directly against your skin, and a stated reason a second layer sits outside it, not an adjective standing in for both.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"vn-pdp-section\"\u003e\n\u003ch3\u003eBuilt for the miles that matter\u003c\/h3\u003e\n\u003cp\u003eHelly Hansen names this garment's use as Trail Running, Resort Skiing and Ski Touring. That's the kind of day that swings from a cold start to a hard climb and back again, which is exactly when what sits against your skin matters most. It's also a bluesign® product, made with Oceanbound recycled materials, both from Helly Hansen's own page.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vn-pdp-section\"\u003e\n\u003ch3\u003eWhat Helly Hansen doesn't publish, and why it's still worth knowing\u003c\/h3\u003e\n\u003cp\u003eOne published figure Helly Hansen doesn't give for this garment is a fabric weight, GSM, grams per square metre. There is no temperature rating either, and no lab test comparing it to cotton or merino. What is published and checkable is the fibre next to your skin and the construction around it, above, which is the same check worth running on any base layer, thermal or not.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vn-affiliate-cta-slot\"\u003e\n\u003ca href=\"https:\/\/amzn.to\/4z15kat\" class=\"vn-affiliate-cta-img\" target=\"_blank\" rel=\"nofollow sponsored noopener\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0723\/3365\/6364\/files\/amazon-buy-now-orange.png?v=1790148135\" alt=\"Buy on Amazon\" width=\"920\" height=\"240\"\u003e\u003c\/a\u003e\u003cp class=\"vn-affiliate-cta-slot__line\"\u003eBuilt so the sweat from the climb doesn't sit against your skin on the way down.\u003c\/p\u003e\n\u003cp class=\"vn-affiliate-cta-slot__note\"\u003eCheck the size and colour on the page before you check out; it opens on one of each.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vn-sizing\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSizes\u003c\/th\u003e\n\u003cth\u003eS\u003c\/th\u003e\n\u003cth\u003eM\u003c\/th\u003e\n\u003cth\u003eL\u003c\/th\u003e\n\u003cth\u003eXL\u003c\/th\u003e\n\u003cth\u003eXXL\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eHelly Hansen's own page says: \"Customers say product fits true to size. We recommend sticking with your regular size.\" For exact body measurements against each size, Helly Hansen's own size guide carries the full chart; check that before you buy rather than guessing from the S to XXL range alone. This listing is the men's version; Helly Hansen also sells a women's LIFA Active Crew (No. 49393, XS to XL), but it is a separate listing with its own sizing, not reachable from this link.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vn-spec-table\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eHelly Hansen Men's LIFA® Active Crew Base Layer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmazon UK ASIN\u003c\/td\u003e\n\u003ctd\u003eB0CKXG19WH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHelly Hansen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e49389\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepartment\u003c\/td\u003e\n\u003ctd\u003eMen's (Helly Hansen also sells a separate Women's LIFA Active Crew, No. 49393, XS to XL; not this product, not this page)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003e2-layer: 100% LIFA® polypropylene next to skin, wicking technical fibres outside (Helly Hansen)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFibre split\u003c\/td\u003e\n\u003ctd\u003e66% polyester, 34% polypropylene (Helly Hansen)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMoisture management\u003c\/td\u003e\n\u003ctd\u003e\"Excellent moisture management properties\" (Helly Hansen)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003ebluesign® product (Helly Hansen)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eOceanbound recycled materials (Helly Hansen)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNeckline\u003c\/td\u003e\n\u003ctd\u003eCrew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended use\u003c\/td\u003e\n\u003ctd\u003eTrail Running, Resort Skiing, Ski Touring (Helly Hansen)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSizing\u003c\/td\u003e\n\u003ctd\u003eS to XXL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv class=\"vn-faq\"\u003e\u003cdl\u003e\n\u003cdiv class=\"vn-faq__item\"\u003e\n\u003cdt\u003eIs this built for running, or is it ski gear?\u003c\/dt\u003e\n\u003cdd\u003eHelly Hansen lists Trail Running alongside Resort Skiing and Ski Touring as intended uses for this garment, on the brand's own product page.\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vn-faq__item\"\u003e\n\u003cdt\u003eWhat's actually next to my skin?\u003c\/dt\u003e\n\u003cdd\u003e100% LIFA® polypropylene, Helly Hansen's own fibre, built directly against the skin, with a separate wicking layer outside it. Helly Hansen calls the combined result \"excellent moisture management properties.\"\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vn-faq__item\"\u003e\n\u003cdt\u003eDoes Helly Hansen publish a fabric weight or temperature rating?\u003c\/dt\u003e\n\u003cdd\u003eNo. There is no GSM figure and no temperature rating for this garment, from Helly Hansen or from Amazon. What is published is the construction and fibre detail above.\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vn-faq__item\"\u003e\n\u003cdt\u003eWhat size should I get?\u003c\/dt\u003e\n\u003cdd\u003eIt is sold S to XXL. Helly Hansen's own page says: \"Customers say product fits true to size. We recommend sticking with your regular size.\" For exact measurements, check Helly Hansen's own size guide rather than guess from the range.\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vn-faq__item\"\u003e\n\u003cdt\u003eIs there a women's version?\u003c\/dt\u003e\n\u003cdd\u003eThis listing is the men's version. Helly Hansen also sells a women's LIFA Active Crew (No. 49393, XS to XL), but it is a separate listing with its own sizing, not reachable from this link.\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vn-faq__item\"\u003e\n\u003cdt\u003eWhere do I buy it?\u003c\/dt\u003e\n\u003cdd\u003eThe Buy on Amazon button takes you to the product page on Amazon, where you complete your purchase. It opens on one size; use the guide above to pick yours before you check out.\u003c\/dd\u003e\n\u003c\/div\u003e\n\u003c\/dl\u003e\u003c\/div\u003e\n\u003cdiv class=\"vn-affiliate-cta-slot\"\u003e\n\u003ca href=\"https:\/\/amzn.to\/4z15kat\" class=\"vn-affiliate-cta-img\" target=\"_blank\" rel=\"nofollow sponsored noopener\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0723\/3365\/6364\/files\/amazon-buy-now-orange.png?v=1790148135\" alt=\"Buy on Amazon\" width=\"920\" height=\"240\"\u003e\u003c\/a\u003e\u003cp class=\"vn-affiliate-cta-slot__line\"\u003eComfortable from the first mile, named construction included.\u003c\/p\u003e\n\u003cp class=\"vn-affiliate-cta-slot__note\"\u003ePick your size on the page before you check out; the link opens on one.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp class=\"vn-affiliate-disclosure\"\u003eAs an Amazon Associate I earn from qualifying purchases.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Helly Hansen","offers":[{"title":"Default Title","offer_id":62696807104899,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0723\/3365\/6364\/files\/VCR-J-0021_gallery-01_2048x2048_66cd6b70-62ba-4828-9de2-0354218e3d07.png?v=1790269524","url":"https:\/\/vivanutrition.shop\/es\/products\/helly-hansen-lifa-active-crew-base-layer-b0ckxg19wh","provider":"VivaNutrition","version":"1.0","type":"link"}