{"product_id":"atomic-four-amid-pro-ctd-helmet","title":"Atomic Four Amid Pro CTD Helmet","description":"\u003ch2\u003eAtomic Four AMID Pro CTD Helmet\u003c\/h2\u003e\n\n\u003cp\u003eThe Four AMID Pro CTD is Atomic's top-of-line all-mountain helmet — the same low-profile, hybrid hard-shell construction as the standard Four AMID Pro, with one addition: Shocksense smart-helmet technology. Shocksense uses five built-in impact-detection zones to track where your helmet takes hits and how hard. Connect it to the app and it tells you whether the helmet is still structurally sound after a fall, or whether it's time to replace it. If an impact exceeds a set force threshold, it automatically sends your GPS location to your emergency contacts. That's the CTD (Connected Tracking Device) part — useful if you ski alone or push into bigger terrain. The shell pairs an ABS hard-shell upper with polycarbonate injection on the sides and an in-mold lower, and adds Atomic's AMID foam (Atomic Multi-directional Impact Deflector) alongside a Holo Core layer for multi-directional impact management. Fit comes via a 360° dial and Live Fit Pads that mold to your head shape. The Fidlock magnetic buckle is quick and glove-friendly. Meets ASTM F2040 and EN 1077 Class B.\u003c\/p\u003e\n\n\u003cp\u003eWho shouldn't buy it: if you ski groomed runs at a family resort and want something simple and cheap, the technology here is wasted — grab the standard Four AMID instead and save money. The CTD features genuinely matter if you ski off-piste alone, guide, or want post-crash data rather than just guessing whether your helmet is still good. It's also a full-featured adult helmet; it does not come in a women's-specific or junior fit, so younger or smaller-headed riders should check sizing carefully before ordering.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eHybrid hard-shell construction: ABS hard-shell upper, polycarbonate on the sides, in-mold EPS lower\u003c\/li\u003e\n  \u003cli\u003eAMID (Atomic Multi-directional Impact Deflector) + Holo Core impact foam\u003c\/li\u003e\n  \u003cli\u003eShocksense: 5-zone impact detection, app-connected damage indicator, built-in SOS with GPS alert\u003c\/li\u003e\n  \u003cli\u003e360° Fit System dial + Live Fit Pads (mold to head shape)\u003c\/li\u003e\n  \u003cli\u003eFidlock magnetic buckle\u003c\/li\u003e\n  \u003cli\u003eRemovable, washable liner and removable goggle clip\u003c\/li\u003e\n  \u003cli\u003eNo visor\u003c\/li\u003e\n  \u003cli\u003eWeight: ~400g (size M)\u003c\/li\u003e\n  \u003cli\u003eCertified: ASTM F2040 \/ EN 1077:2007 Class B\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ATOMIC","offers":[{"title":"Dark Grey \/ S (51-55)","offer_id":51447504339239,"sku":null,"price":248.0,"currency_code":"USD","in_stock":true},{"title":"Dark Grey \/ M","offer_id":51447505256743,"sku":null,"price":248.0,"currency_code":"USD","in_stock":true},{"title":"Dark Grey \/ L","offer_id":51447505289511,"sku":null,"price":248.0,"currency_code":"USD","in_stock":false},{"title":"Dark Grey \/ XL","offer_id":51447505322279,"sku":null,"price":248.0,"currency_code":"USD","in_stock":true},{"title":"Light Grey \/ S (51-55)","offer_id":51447504961831,"sku":null,"price":248.0,"currency_code":"USD","in_stock":false},{"title":"Light Grey \/ M","offer_id":51447505355047,"sku":null,"price":248.0,"currency_code":"USD","in_stock":false},{"title":"Light Grey \/ L","offer_id":51447505387815,"sku":null,"price":248.0,"currency_code":"USD","in_stock":true},{"title":"Light Grey \/ XL","offer_id":51447505420583,"sku":null,"price":248.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/7177\/0663\/files\/atomic_four_amid_pro_ctd_helmet_2022-2023_ski_pro_477927429430.webp?v=1780156903","url":"https:\/\/933534.myshopify.com\/zh\/products\/atomic-four-amid-pro-ctd-helmet","provider":"PTO SKI \u0026 Snowboard","version":"1.0","type":"link"}