{"product_id":"40l-waterproof-dry-bag-backpack","title":"COR Surf 40L Waterproof Dry Bag Backpack with Laptop Sleeve","description":"\u003cp\u003e\u003cstrong\u003eBest fit:\u003c\/strong\u003e larger loads for kayaking, paddleboarding, boating, surf and fishing days, wet-weather camera carry, rain-heavy hikes, and trips where a 25 L dry pack is too small.\u003c\/p\u003e\n\u003cp\u003eThe COR Surf 40L Waterproof Dry Bag Backpack combines a high-capacity roll-top main compartment with sonic-welded seams, a padded laptop sleeve, two large bottle pockets, and a splash-resistant quick-access pocket.\u003c\/p\u003e\n\u003ch2\u003eUse-case match\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulky water-sport gear:\u003c\/strong\u003e 40 L gives more room for layers, towels, camera inserts, and day equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet-weather transport:\u003c\/strong\u003e the main compartment uses a roll-top closure and welded seams; COR Surf states that the pack floats if dropped in water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixed work and outdoor carry:\u003c\/strong\u003e an 11 × 14 in padded sleeve separates a laptop or camera equipment from the main load.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMeasured specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCapacity\u003c\/th\u003e\n\u003ctd\u003e40 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eExternal dimensions\u003c\/th\u003e\n\u003ctd\u003e21 × 15 × 8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEmpty weight\u003c\/th\u003e\n\u003ctd\u003e2.6 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eLaptop sleeve\u003c\/th\u003e\n\u003ctd\u003e11 × 14 in padded compartment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBottle pockets\u003c\/th\u003e\n\u003ctd\u003eTwo mesh side pockets; up to 32 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eClosure\u003c\/th\u003e\n\u003ctd\u003eRolling hook-and-loop top with sonic-welded seams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCarry support\u003c\/th\u003e\n\u003ctd\u003ePadded ergonomic shoulder straps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eVisibility\u003c\/th\u003e\n\u003ctd\u003eReflective strip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eQuick-access storage\u003c\/th\u003e\n\u003ctd\u003eExterior splash-resistant pocket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eWater-protection boundary\u003c\/h2\u003e\n\u003cp\u003eCOR Surf describes the properly sealed main compartment as waterproof. The exterior zip pocket is \u003cstrong\u003esplash resistant only\u003c\/strong\u003e; do not store electronics there during submersion or prolonged driving rain. TripSpec has not independently laboratory-tested waterproofing.\u003c\/p\u003e\n\u003ch2\u003eChoose another option if\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eYou mainly carry a compact day load; the 25 L model is smaller and lighter.\u003c\/li\u003e\n\u003cli\u003eYou want clamshell organization and travel-document pockets; compare the Island Hopper 2.0.\u003c\/li\u003e\n\u003cli\u003eYou need guaranteed personal-item or carry-on acceptance. Airline and fare rules vary, so compare 21 × 15 × 8 in with the carrier’s current limit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eReview evidence\u003c\/h2\u003e\n\u003cp\u003eAt the time of our September 3, 2026 review, Shop listed 58 ratings for this model. A separate hands-on Engearment review reported dry contents after heavy rain and brief submersion tests, while noting that the outer pocket is not waterproof. Third-party tests and owner reports are not a substitute for a formal certification.\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003eSources: \u003ca href=\"https:\/\/www.corsurf.com\/products\/cor-dry-bag-backpack-with-laptop-sleeve-20l\"\u003eCOR Surf specifications\u003c\/a\u003e, \u003ca href=\"https:\/\/shop.app\/m\/kgp80vn4wr\"\u003eShop rating count\u003c\/a\u003e, and \u003ca href=\"https:\/\/engearment.com\/backpacks\/cor-surf-40l-waterproof-backpack\/\"\u003eEngearment hands-on review\u003c\/a\u003e. Specifications checked September 3, 2026; ratings can change.\u003c\/small\u003e\u003c\/p\u003e","brand":"COR Surf","offers":[{"title":"40L Green","offer_id":54505028616502,"sku":"Bag-GRN","price":79.99,"currency_code":"USD","in_stock":true},{"title":"40L Grey","offer_id":54505028649270,"sku":"Bag-GRY","price":79.99,"currency_code":"USD","in_stock":false},{"title":"40L Black","offer_id":54505028682038,"sku":"Bag40-BLK","price":74.99,"currency_code":"USD","in_stock":false},{"title":"CAMO","offer_id":54505028714806,"sku":"Bag40-camo","price":74.99,"currency_code":"USD","in_stock":false},{"title":"Dark Blue","offer_id":54505028747574,"sku":"Bag40-DBlue","price":68.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/3527\/1990\/files\/40L-Dry-backpack-main.png?v=1788461022","url":"https:\/\/tripspecgear.com\/products\/40l-waterproof-dry-bag-backpack","provider":"TripSpec","version":"1.0","type":"link"}