{"product_id":"ultra-light-running-sports-backpack-for-marathons-5l-nylon-pack","title":"Ultra-Light Running \u0026 Sports Backpack for Marathons | 5L Nylon Pack","description":"\u003cstyle\u003e.sarahexpress{font-family:inherit;color:#222;max-width:900px;margin:0 auto}.sarahexpress details{border:1px solid #e0e0e0;border-radius:8px;margin-bottom:14px;overflow:hidden}.sarahexpress summary{display:block;cursor:pointer;background:#f7f7f7;padding:0}.sarahexpress .se-summary-inner{padding:14px 18px;font-weight:700;font-size:1.05em;letter-spacing:.01em;color:#1a1a1a;display:flex;align-items:center;justify-content:space-between}.sarahexpress .se-summary-inner::after{content:'＋';font-size:1.1em;color:#888}.sarahexpress details[open] .se-summary-inner::after{content:'－'}.sarahexpress .se-body{padding:16px 18px}.sarahexpress table{width:100%;border-collapse:collapse;font-size:.97em;margin-top:8px}.sarahexpress th{background:#222;color:#fff;padding:9px 12px;text-align:left;font-weight:700}.sarahexpress td{padding:8px 12px;border-bottom:1px solid #eee;color:#333}.sarahexpress tr:hover td{background:#f9f6f2}.sarahexpress .se-gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:10px}.sarahexpress .se-gallery img{width:100%;max-width:300px;border-radius:6px;display:block;margin:0 auto;transition:transform .2s}.sarahexpress .se-gallery img:hover{transform:scale(1.03)}.sarahexpress .se-tagline{font-style:italic;color:#888;font-size:.93em;margin-top:18px;text-align:center;border-top:1px solid #eee;padding-top:12px}@media(max-width:600px){.sarahexpress .se-gallery{grid-template-columns:1fr}.sarahexpress table{font-size:.88em}}\u003c\/style\u003e\u003cdiv class=\"sarahexpress\"\u003e\n\u003cdetails\u003e\u003csummary\u003e\u003cdiv class=\"se-summary-inner\"\u003eProduct Specifications \u0026amp; Size Chart\u003c\/div\u003e\u003c\/summary\u003e\u003cdiv class=\"se-body\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e5L (Hydration bladder not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial (Outer)\u003c\/td\u003e\n\u003ctd\u003eNylon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLining Material\u003c\/td\u003e\n\u003ctd\u003eOxford Cloth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePattern\u003c\/td\u003e\n\u003ctd\u003eSolid Color\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarrying System\u003c\/td\u003e\n\u003ctd\u003eCurved Ergonomic Shoulder Straps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStyle\u003c\/td\u003e\n\u003ctd\u003eCasual \/ Sports Travel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplicable Scene\u003c\/td\u003e\n\u003ctd\u003eOutdoor Sports, Running, Marathon, Hiking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGender\u003c\/td\u003e\n\u003ctd\u003eUnisex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeature\u003c\/td\u003e\n\u003ctd\u003eUltra-Light\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Colors\u003c\/td\u003e\n\u003ctd\u003eOrange, Gray, Black, Blue (+ Set options)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (approx.)\u003c\/td\u003e\n\u003ctd\u003e220g (solo) \/ 328g (set)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cdiv class=\"se-summary-inner\"\u003eAbout This Backpack\u003c\/div\u003e\u003c\/summary\u003e\u003cdiv class=\"se-body\"\u003e\n\u003cp\u003eBuilt for those who move fast and travel light, the Sarah Express Ultra-Light Sports Backpack is your ideal companion for marathon days, trail runs, and spontaneous outdoor adventures. At just 5 liters, it carries exactly what you need — nothing more, nothing less.\u003c\/p\u003e\n\u003cp\u003eCrafted from durable nylon with a smooth Oxford cloth lining, this pack is designed to handle the demands of active use while staying feather-light on your back. The curved ergonomic shoulder straps distribute weight evenly, so you stay comfortable mile after mile.\u003c\/p\u003e\n\u003cp\u003eAvailable in four bold colorways — Orange, Gray, Black, and Blue — with matching set options for a coordinated look. Whether you're crossing a finish line or exploring a new trail, this backpack keeps up with you.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's in the box:\u003c\/strong\u003e Backpack × 1\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cdiv class=\"se-summary-inner\"\u003eBag Care \u0026amp; Maintenance\u003c\/div\u003e\u003c\/summary\u003e\u003cdiv class=\"se-body\"\u003e\u003cp\u003e\u003cstrong\u003eCleaning:\u003c\/strong\u003e Wipe exterior with a damp cloth and mild soap. Do not machine wash or tumble dry — this preserves the nylon shell and Oxford lining integrity.\u003cbr\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Store in a cool, dry place away from direct sunlight. Keep loosely packed to maintain shape.\u003cbr\u003e\u003cstrong\u003eStraps:\u003c\/strong\u003e Periodically check strap stitching and buckles for wear. Wipe straps with a damp cloth after heavy use.\u003cbr\u003e\u003cstrong\u003eZippers:\u003c\/strong\u003e Keep zippers clean and free of debris. Apply zipper lubricant if sticking occurs.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cdiv class=\"se-summary-inner\"\u003eShipping Information\u003c\/div\u003e\u003c\/summary\u003e\u003cdiv class=\"se-body\"\u003e\u003cp\u003e\u003cstrong\u003eShips From:\u003c\/strong\u003e Overseas\u003cbr\u003e\u003cstrong\u003eDelivery to USA:\u003c\/strong\u003e 10–15 business days\u003cbr\u003e\u003cstrong\u003eInternational Delivery:\u003c\/strong\u003e 10–15 business days\u003cbr\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e All international orders are final sale. USA orders are eligible for returns per our standard policy.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003e\u003cdiv class=\"se-summary-inner\"\u003eProduct Images\u003c\/div\u003e\u003c\/summary\u003e\u003cdiv class=\"se-body\"\u003e\u003cdiv class=\"se-gallery\"\u003e\n\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/ef2f5b8b-5a99-4b16-bf75-f74198f6f60f_fine.jpeg\" alt=\"Ultra-light 5L running backpack in orange — front view, Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/e3a7a142-24f2-4d9c-8fcf-8d1ddf1128ef_trans.jpeg\" alt=\"Lightweight nylon sports backpack gray — side profile, Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/1d5ae721-ddbb-4b93-9857-6d7f4928ca25_trans.jpeg\" alt=\"5L marathon backpack black — back view with shoulder straps, Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/f6401515-6292-4f0e-bdbd-c8301fe0da3f_trans.jpeg\" alt=\"Ultra-light running pack blue — detail view, Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/e142dc01-b3f5-4e9a-a13e-64f1ddb49116_trans.jpeg\" alt=\"Compact outdoor sports backpack — zipper and strap detail, Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/1d86e8e8-404b-4c05-b015-a0b7c338f066_trans.jpeg\" alt=\"Nylon trail running backpack — lifestyle shot, Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/b97cce72-c4b9-48a7-8818-4160881b400f_trans.jpeg\" alt=\"5L sports pack worn during outdoor run — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/aa085f0c-923f-48df-9984-f4efeb248e4e_trans.jpeg\" alt=\"Ultra-light backpack interior Oxford cloth lining — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/2b70ae05-24ca-4838-93b0-0972cbb29c51_trans.jpeg\" alt=\"Curved ergonomic shoulder straps on running backpack — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/fa4d1d5b-b5b5-4cde-a7ed-b8ae2de7de72_trans.jpeg\" alt=\"Compact 5L nylon backpack for marathon runners — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/041cd739-3d81-48b0-addd-1cbe2f3f6f26_trans.jpeg\" alt=\"Sports backpack orange color variant — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/57194ef5-364e-4159-a3e5-33118d332ab0_trans.jpeg\" alt=\"Running backpack gray color variant — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/68519f39-13cd-4d23-b2e2-094cda5e5fa5_trans.jpeg\" alt=\"Lightweight outdoor pack black color — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/542caf62-d3e7-476f-903a-8bcc0453a827_trans.jpeg\" alt=\"5L sports backpack blue color — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/a773eb4f-eefc-4025-a391-5caece53dd5b_trans.jpeg\" alt=\"Ultra-light nylon backpack set option — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/099d6adb-81bf-49c3-8144-d26ff9848eae_trans.jpeg\" alt=\"Running backpack set black — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/3809605a-8ccb-4449-935f-2ae0fad28668_trans.jpeg\" alt=\"Sports backpack set blue — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/b6d96baf-562b-4782-ba93-6576473d27ee_trans.jpeg\" alt=\"Marathon backpack set gray — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/595860d7-c3dc-428f-b106-f9bbb0ec8bde_trans.jpeg\" alt=\"Outdoor running pack set orange — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/14a9abea-e669-4472-b03f-e75b3d4a6180_trans.jpeg\" alt=\"5L nylon backpack lifestyle — trail running, Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/5aba221c-ce62-4ab1-9f1e-febd22158d91_trans.jpeg\" alt=\"Compact sports backpack worn on back — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/ac298bed-75f0-4870-876a-1c5c2af6e266_trans.jpeg\" alt=\"Ultra-light marathon pack detail — zipper close-up, Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/63835e40-1c3a-4300-bfd0-33a6eb8ed41a_trans.jpeg\" alt=\"Nylon running backpack strap adjustment — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/36139969-ede7-4fcd-b3a3-34c0a4321e6c_trans.jpeg\" alt=\"5L sports pack Oxford lining interior pocket — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/1abf62fc-689d-4478-a5b0-9b3a2dd28500_trans.jpeg\" alt=\"Lightweight outdoor backpack all color options — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/b1c30dc7-6ab9-4ae5-8386-d2ad599e644a_trans.jpeg\" alt=\"Running backpack flat lay — nylon material detail, Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/ccc1970d-b1f4-4b94-a9ab-0d04dd596182_trans.jpeg\" alt=\"Ultra-light 5L marathon backpack product shot — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/169a22be-d15a-4f6b-85dd-ce4db11862fb_trans.jpeg\" alt=\"Sports backpack curved shoulder strap ergonomic design — Sarah Express\"\u003e\u003cimg src=\"https:\/\/oss-cf.cjdropshipping.com\/product\/2026\/01\/18\/06\/805720f2-e28a-4a40-b4f4-0bff572b61a2_trans.jpeg\" alt=\"5L nylon running backpack complete product view — Sarah Express\"\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cp class=\"se-tagline\"\u003eYou can't buy class, but you can buy quality. — Sarah Express\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Sarah Express","offers":[{"title":"Orange \/ 5L Without Water Bag","offer_id":53075726434671,"sku":"CJYD273380301AZ","price":32.72,"currency_code":"USD","in_stock":true},{"title":"Gray \/ 5L Without Water Bag","offer_id":53075726467439,"sku":"CJYD273380302BY","price":32.72,"currency_code":"USD","in_stock":true},{"title":"Black \/ 5L Without Water Bag","offer_id":53075726500207,"sku":"CJYD273380303CX","price":32.72,"currency_code":"USD","in_stock":true},{"title":"Blue \/ 5L Without Water 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