{"product_id":"k9-sport-sack-trainer","title":"K9 Sport Sack Trainer — Dog Backpack, 4 to 30 lb, Four Sizes","description":"\u003cp\u003eThe entry-level one, and the maker says so plainly: \u003cstrong\u003eshort, non-strenuous activities\u003c\/strong\u003e — a short walk, the bus, a puppy learning that the world is fine from up there. It is the model for a dog still growing or still getting used to being carried.\u003c\/p\u003e\u003ch3\u003eThe measurement that matters here\u003c\/h3\u003e\u003cp\u003eA carrier is sized by the bag. \u003cstrong\u003eA backpack is sized by the dog.\u003c\/strong\u003e Measure along the spine, from the collar to the base of the tail, and buy that size — the weight limit is the second check, not the first. Between two sizes on length, go by weight: this rides on your shoulders and a bag that is too big swings.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eX-Small\u003c\/strong\u003e — 10–13 in from collar to tail\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall\u003c\/strong\u003e — 13–17 in from collar to tail\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium\u003c\/strong\u003e — 17–20 in from collar to tail\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge\u003c\/strong\u003e — 20–23 in from collar to tail\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eUp to 30 lb\u003c\/strong\u003e in every size. No airline takes a dog backpack under the seat with the dog inside it, so none of the numbers on this page are cabin numbers.\u003c\/p\u003e\u003ch3\u003eWhat it does well\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLumbar support strap\u003c\/strong\u003e on Small, Medium and Large. \u003cstrong\u003eNot on X-Small\u003c\/strong\u003e — the maker leaves it off that size, and we would rather you knew before you ordered.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVentilated panels\u003c\/strong\u003e and a collar enclosure, same as the bigger models.\u003c\/li\u003e\n\u003cli\u003eFits most comfortably on an owner of small to medium build.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIf you are planning long days or hills, the \u003ca href=\"\/products\/k9-sport-sack-air-2\"\u003eAir 2\u003c\/a\u003e is built for that and the \u003ca href=\"\/products\/k9-sport-sack-knavigate\"\u003eKnavigate\u003c\/a\u003e for more again.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eThis is a backpack for walking, not a carrier for flying. It is worn, so the space it needs is your back, not the space under a seat. If you are booking a flight, our \u003ca href=\"\/collections\/flying-with-your-pet\"\u003ecabin carriers\u003c\/a\u003e publish a footprint and a height checked against nine U.S. airlines.\u003c\/em\u003e\u003c\/p\u003e","brand":"K9 Sport Sack","offers":[{"title":"Iron gate \/ Large — 20–23 in collar to tail","offer_id":41624521310266,"sku":"S001466B001977P000015V002","price":49.95,"currency_code":"USD","in_stock":false},{"title":"Iron gate \/ Medium — 17–20 in collar to tail","offer_id":41624521408570,"sku":"S001466B001977P000015V006","price":49.95,"currency_code":"USD","in_stock":true},{"title":"Iron gate \/ Small — 13–17 in collar to tail","offer_id":41624521506874,"sku":"S001466B001977P000015V010","price":49.95,"currency_code":"USD","in_stock":true},{"title":"Iron gate \/ X-Small — 10–13 in collar to tail","offer_id":41624521605178,"sku":"S001466B001977P000015V014","price":49.95,"currency_code":"USD","in_stock":true},{"title":"Greenery \/ Large — 20–23 in collar to tail","offer_id":41624521343034,"sku":"S001466B001977P000015V003","price":49.95,"currency_code":"USD","in_stock":true},{"title":"Greenery \/ Medium — 17–20 in collar to tail","offer_id":41624521441338,"sku":"S001466B001977P000015V007","price":49.95,"currency_code":"USD","in_stock":true},{"title":"Greenery \/ Small — 13–17 in collar to tail","offer_id":41624521539642,"sku":"S001466B001977P000015V011","price":49.95,"currency_code":"USD","in_stock":true},{"title":"Greenery \/ X-Small — 10–13 in collar to tail","offer_id":41624521637946,"sku":"S001466B001977P000015V015","price":49.95,"currency_code":"USD","in_stock":true},{"title":"Harbor blue \/ Large — 20–23 in collar to tail","offer_id":41624521375802,"sku":"S001466B001977P000015V004","price":49.95,"currency_code":"USD","in_stock":true},{"title":"Harbor blue \/ Medium — 17–20 in collar to tail","offer_id":41624521474106,"sku":"S001466B001977P000015V008","price":49.95,"currency_code":"USD","in_stock":true},{"title":"Harbor blue \/ Small — 13–17 in collar to tail","offer_id":41624521572410,"sku":"S001466B001977P000015V012","price":49.95,"currency_code":"USD","in_stock":true},{"title":"Harbor blue \/ X-Small — 10–13 in collar to tail","offer_id":41624521670714,"sku":"S001466B001977P000015V016","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/6343\/8394\/files\/1466-850007012434.0.td_size_1_d3398fe6-69a2-4140-afb6-c1ca08f2ef5c.webp?v=1788215926","url":"https:\/\/jackandsusy.com\/products\/k9-sport-sack-trainer","provider":"Jack \u0026 Susy","version":"1.0","type":"link"}