{"product_id":"devonaire-matrix-helmet","title":"Devon-Aire® Matrix Helmet**","description":"Devon-Aire® delivers its most advanced helmet technology in the lightweight and comfortable Matrix Helmet** featuring exclusive conehead technology. A technically advanced shock-absorbing system uses both high- and low-density foam layers. Soft, shock-absorbing low-density foam close to the head helps distribute the energy of impact laterally through an upper layer of high-density foam. Impact force is absorbed by this lateral motion at the same time the head is traveling in the opposite direction, compressing the bases of the lower density foam and slowing the acceleration. The result is lower G-force on the head. To help regulate body temperature, this helmet has multiple air vents that can be opened in warm weather to take advantage of breezes or closed in cool weather to help retain body heat. Adjustable dial fit retention system and four-point harness with quick snap buckle. **ASTM F1163-04a\/SEI certified.\u003cbr\u003e\u003cbr\u003eMachine wash.\u003cbr\u003e100% acrylic and 100% polyester fleece\u003cbr\u003eS(6 1\/2-7), M(6 3\/4-7 1\/4), L(7 3\/8-7 3\/4).","brand":"Dover Saddlery","offers":[{"title":"Black \/ SMALL","offer_id":47972562469089,"sku":"0036375008991","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Black \/ MEDIUM","offer_id":47972562665697,"sku":"0036375008992","price":0.0,"currency_code":"USD","in_stock":false},{"title":"Black \/ LARGE","offer_id":47972562698465,"sku":"0036375008994","price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/www.doversaddlery.com\/products\/devonaire-matrix-helmet","provider":"Dover Saddlery","version":"1.0","type":"link"}