{"product_id":"kabinbag-original-underseat-30l","title":"KABINBAG Original Underseat 30L","description":"\u003ch2\u003eExpand it to pack. Compress it to fly.\u003c\/h2\u003e\n\u003cp\u003eYou've paid that gate fee before. You swore you wouldn't again.\u003c\/p\u003e\n\u003cp\u003eA 20-litre commuter backpack that unzips into a 30-litre carry-on — and still goes under the seat in front of you. Pack it, vacuum it flat, and take five days of clothes into the cabin instead of paying for the hold.\u003c\/p\u003e\n\n\u003ch3\u003eHow it works\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnzip the expansion layer\u003c\/strong\u003e — 5cm of extra depth turns a 20L daypack into a 30L carry-on\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack and compress\u003c\/strong\u003e — attach the included pump to the one-way valve. The contents collapse. Twenty seconds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWalk on\u003c\/strong\u003e — 40 × 30 × 20 cm, inside Ryanair's free under-seat allowance\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eTwo bags in one\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommuting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZipped down — 40 × 30 × 15 cm, approx. 20 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTravelling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExpanded — 40 × 30 × 20 cm, approx. 30 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eSame bag Monday morning and Friday night. Laptop sleeve, combination lock and USB pass-through work in both modes.\u003c\/p\u003e\n\n\u003ch3\u003eWhere it flies free\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eRyanair — free under-seat bag\u003c\/td\u003e\n\u003ctd\u003e40 × 30 × 20 cm\u003c\/td\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWizz Air — free under-seat bag\u003c\/td\u003e\n\u003ctd\u003e40 × 30 × 20 cm\u003c\/td\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eeasyJet — free cabin bag\u003c\/td\u003e\n\u003ctd\u003e45 × 36 × 20 cm\u003c\/td\u003e\n\u003ctd\u003eFits, room to spare\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJet2 — free cabin bag\u003c\/td\u003e\n\u003ctd\u003e56 × 45 × 25 cm\u003c\/td\u003e\n\u003ctd\u003eFits, room to spare\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBritish Airways — free cabin bag\u003c\/td\u003e\n\u003ctd\u003e56 × 45 × 25 cm\u003c\/td\u003e\n\u003ctd\u003eFits, room to spare\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eFully expanded the bag matches Ryanair and Wizz Air's free allowance exactly. Compress properly before you board — a soft-sided bag that isn't vacuumed down will bulge past the frame.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eBefore you fly — 30 seconds at home\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompress fully.\u003c\/strong\u003e Pump until the fabric is taut against the contents, not just firm. A bulging bag is what gets stopped, not a wide one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck it flat.\u003c\/strong\u003e Compressed and expanded, the bag should measure 40 × 30 × 20 cm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeigh it.\u003c\/strong\u003e Compression saves space, not weight. Ryanair and Wizz Air cap cabin bags at 10kg, easyJet at 15kg.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeep the pump in the outer pocket\u003c\/strong\u003e so you can re-compress for the flight home.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eKABINBAG Original Underseat 30L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFREE\u003c\/strong\u003e Travel Pump — worth £39\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFREE\u003c\/strong\u003e Travel Toiletry Bag\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFREE\u003c\/strong\u003e £20 KABINBAG gift card\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFREE\u003c\/strong\u003e UK delivery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eZipped down\u003c\/td\u003e\n\u003ctd\u003e40 × 30 × 15 cm — approx. 20 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpanded\u003c\/td\u003e\n\u003ctd\u003e40 × 30 × 20 cm — approx. 30 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion layer\u003c\/td\u003e\n\u003ctd\u003e5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eWater-resistant coated nylon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaptop compartment\u003c\/td\u003e\n\u003ctd\u003ePadded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecurity\u003c\/td\u003e\n\u003ctd\u003eCombination lock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eBuy it with confidence\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e30-day money-back guarantee\u003c\/li\u003e\n\u003cli\u003eFree UK delivery — 4 to 8 days\u003c\/li\u003e\n\u003cli\u003eUK-based customer support\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KABINBAG","offers":[{"title":"Black","offer_id":58116302602571,"sku":"KB-UNDER-30-BLK","price":99.99,"currency_code":"GBP","in_stock":true},{"title":"Army Green","offer_id":58116302635339,"sku":"KB-UNDER-30-GRN","price":99.99,"currency_code":"GBP","in_stock":true},{"title":"Light Blue","offer_id":58116302668107,"sku":"KB-UNDER-30-BLU","price":99.99,"currency_code":"GBP","in_stock":true},{"title":"Pink","offer_id":58122791584075,"sku":"KB-UNDER-30-PNK","price":99.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1065\/0635\/5019\/files\/hf_20260816_175708_8084a325-8c76-402d-b39a-9d5a0c100aba.png?v=1788856642","url":"https:\/\/kabinbag.com\/products\/kabinbag-original-underseat-30l","provider":"KabinBag","version":"1.0","type":"link"}