---
url: "https://onebag.travel/carryon/5uozk4l5zy/ks-ultralight-ks27/"
title: "KS Ultralight KS27 Details - One Bag Travel"
description: "Reviews, airline compatibility, and specifications of the KS Ultralight KS27 carry-on travel backpack."
source: "https://onebag.travel/carryon/5uozk4l5zy/ks-ultralight-ks27/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  KS Ultralight KS27

# KS Ultralight KS27

by [KS Ultralight](https://onebag.travel/carryons/?brands=KS Ultralight)

Capacity 27 L

Weight 0.3 kg 0.6 lbs

Dimensions 55×28×16 cm 21.7×11×6.3 in

Airline fit 87 % of airlines

![Front facing view of the KS Ultralight KS27](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990375/carryons/ks-ultralight-ks27-5uozk4l5zy.webp)

**Deeper stats**



<table class="table table-sm table-borderless" id="carryon-details-table"><tbody><tr><td><span class="underline" title="Litres of capacity per unit of pack weight — higher means you carry more for less.">Capacity-to-weight</span></td><td><span class="metric-value">90 L/kg</span> <span class="imperial-value">45 L/lb</span></td><td><span class="badge badge-success">High</span></td></tr><tr><td><span class="underline" title="Total interior volume implied by the outer dimensions.">Cubic space</span></td><td><span class="metric-value">24.6 L</span> <span class="imperial-value">1504 in³</span></td><td></td></tr><tr><td><span class="underline" title="Gap between the bag's outer volume and its rated capacity — lower packs more efficiently.">Rated vs. shell</span></td><td><span class="metric-value">-2 L</span><span class="imperial-value">-2 L</span></td><td><span class="badge badge-success">Low</span></td></tr></tbody></table>

**Airline Compatibility**

✈️ 87% (164/189)

This bag is within the published carry-on limit of 87% of the 189 airlines that publish one.

[Link to Manufacturer](https://www.ks-ultralightgear.com/p/ks-27-z.html)

## Features

<table class="table table-sm  table-borderless" id="carryon-details-table"><tbody><tr><td colspan="2" class="border-bottom"><strong>Storage</strong></td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a way to compress the contents to make them smaller?">Compression</span></td><td>2</td></tr><tr><td><span class="underline" title="If this carry-on expands, how much does it expand by?">Expanded Capacity</span></td><td><span>None</span></td></tr><tr><td><span class="underline" title="The type of opening does this carry-on travel backpack have in degrees.">Opening</span></td><td>Other</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a dedicated passport holder?">Passport</span></td><td>Top</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a pass-through opening so you can reach the main compartments without fully opening the bag?">Passthrough</span></td><td>No</td></tr><tr><td colspan="2" class="border-bottom"><strong>Carry</strong></td></tr><tr><td><span class="underline" title="Does this have backpack straps?">Backpack</span></td><td>Yes</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a belt that goes around your hip to help support the weight of the bag?">Hip Belt</span></td><td>Removable</td></tr><tr><td><span class="underline" title="Does this carry-on travel backpack have a strap that goes around your upper chest so help support the weight of the bag?">Sternum Strap</span></td><td>Removable</td></tr><tr><td colspan="2" class="border-bottom"><strong>Inside</strong></td></tr><tr><td><span class="underline" title="What size laptop sleeve can this carry-on travel backpack fit?">Laptop</span></td><td>No</td></tr><tr><td><span class="underline" title="The number of main compartments this bag has.  Side and small compartments don't count.">Main Compartments</span></td><td>2</td></tr><tr><td><span class="underline" title="Does the main compartment of the carry-on travel backpack have features which help you organize?">Organizer</span></td><td>No</td></tr><tr><td colspan="2" class="border-bottom"><strong>Outside</strong></td></tr><tr><td><span class="underline" title="Does the backpack have a hardshell component to protect your packed items?">Hard Shell</span></td><td>No</td></tr><tr><td><span class="underline" title="Does this carry on have a rain-fly to protect it from the weather?">Rain-fly</span></td><td>No</td></tr><tr><td><span class="underline" title="The number of bottle holders this bag has">Water Bottle Holder</span></td><td>2 (side)</td></tr><tr><td><span class="underline" title="Is this carry-on travel backpack made with water resistant material?">Water Resistant</span></td><td>Yes</td></tr><tr><td colspan="2"><span class="underline" title="What type of material is this carry-on travel backpack made of?"><strong>Material:</strong></span><br>X-pac VX 07 YKK "waterproof zip"</td></tr></tbody></table>

## Fits the carry-on limits of 164 airlines

Adria Airways Aegean Airlines Aer Lingus Aeroflot Aerolineas Argentinas Aeromexico Air Asia Air Astana Air Baltic Air Canada Air Caraibes Air China Air Europa Air France Air India Air Koryo Air Macau Air Malta Air Mauritius Air New Zealand Air Nostrum Air Serbia Air Seychelles Air Tahiti Nui Air Wisconsin AirAsiaX Alaska Airlines All Nipon Airways Allegiant Air American Airlines ANA Asiana Airlines ATA Airlines Atlas Global Austrian Avianca Azerbaijan Airlines Azul Airlines Azul Linhas Bahamasair Bangkok Airways Biman Bangladesh Blue Air Boliviana de Aviacion British Airways Brussels Airlines Bulgaria Air Cambodia Angkor Air Caribbean Airlines Cathay Pacific Cayman Airways Cebu Pacific China Airlines China Eastern China Southern CommutAir Conviasa Copa Airlines Croatia Air Cubana de Aviacion Czech Airlines Delta Airlines Dragonair EL AL Emirates Airlines Enter Air Ethiopian Airlines Eurowings EVA Air Fiji Airways Finnair Flair Air flybe Frontier Airlines Garuda Indonesia Gol Linhas Aereas Great Lakes Airlines Hainan Airlines Hawaiian Airlines Hong Kong Airlines Iberia Icelandair Indigo InselAir Interjet Iran Air Iran Aseman Air Island Air Japan Airlines Jet Airways Jet2 jetBlue Airways Jetstar Airways Jetstar Asia Juneyao Airlines Kenya Airways KLM Korean Air Kulula Kuwait Air LATAM LOT Polish Lufthansa Luxair Mahan Air Malaysia Airlines Mango Meridiana Fly Mesa Airlines Middle East Airlines Monarch Airlines Nordwind Airlines Norwegian Onur Air Pakistan International Peach PenAir Philippine Airlines Porter Airlines Qantas Airways Republic Airways Royal Air Morocco Royal Brunei Airlines Ryanair S7 SAS Scandinavian Saudi Arabian Airlines Shandong Airlines Shenzhen Airlines Sichuan Airlines SilkAir Silver Airways Singapore Airlines Sky Airlines Skywest, Inc. South African Airways Southwest Airlines SpiceJet Spirit Airlines SriLankan Airlines Sun Country Sun Express Swiss Int'l Air Lines TAAG Angola TAM Airlines TAP Air Portugal TAROM Thai Airways Tianjin Airlines (A320 & E190) Trans States Travel Service Airlines TUI Turkish Airlines Ukraine International United Airlines Ural Airlines Uzbekistan Air Vietnam Airlines VIM Airlines (Closed) Virgin America Virgin Atlantic Volotea WOW Airlines Xiamen

## Similar backpacks

Travel backpacks with comparable features and capacity.

[![Lowe Alpine Edge 26 carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1788990378/carryons/lowe-alpine-edge-26-0ncyjf6ynf.webp)](https://onebag.travel/carryon/0ncyjf6ynf/lowe-alpine-edge-26/)

[Lowe Alpine Edge 26](https://onebag.travel/carryon/0ncyjf6ynf/lowe-alpine-edge-26/) [Lowe Alpine](https://onebag.travel/brand/lowe-alpine/)

26L 0.6kg 40% fit

**59%** match **1L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/0ncyjf6ynf/lowe-alpine-edge-26/)

[![Matador Beast28 Packable Backpack carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1601600260/carryons/matadog_bkbdww.webp)](https://onebag.travel/carryon/j1xe5qjdcy/matador-beast28-packable-backpack/)

[Matador Beast28 Packable Backpack](https://onebag.travel/carryon/j1xe5qjdcy/matador-beast28-packable-backpack/) [Matador](https://onebag.travel/brand/matador/)

28L 0.7kg 47% fit

**59%** match **1L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/j1xe5qjdcy/matador-beast28-packable-backpack/)

[![Gossamer Gear Loris 25 Daypack carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1788990481/carryons/gossamer-gear-loris-25-daypack-qn7qhe8n7r.webp)](https://onebag.travel/carryon/qn7qhe8n7r/gossamer-gear-loris-25-daypack/)

[Gossamer Gear Loris 25 Daypack](https://onebag.travel/carryon/qn7qhe8n7r/gossamer-gear-loris-25-daypack/) [Gossamer Gear](https://onebag.travel/brand/gossamer-gear/)

25L 0.6kg 95% fit

**59%** match **2L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/qn7qhe8n7r/gossamer-gear-loris-25-daypack/)

[![Osprey Skarab 30 carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1788990419/carryons/osprey-skarab-30-147wj27snm.webp)](https://onebag.travel/carryon/147wj27snm/osprey-skarab-30/)

[Osprey Skarab 30](https://onebag.travel/carryon/147wj27snm/osprey-skarab-30/) [Osprey](https://onebag.travel/brand/osprey/)

30L 0.9kg 39% fit

**59%** match **3L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/147wj27snm/osprey-skarab-30/)

[![Matador Freerain22 Waterproof Packable Backpack carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1629963005/carryons/Freerain22_Waterproof_Packable_Backpack_cbg8of.webp)](https://onebag.travel/carryon/fqc60l6hae/matador-freerain22-waterproof-packable-backpack/)

[Matador Freerain22 Waterproof Packable Backpack](https://onebag.travel/carryon/fqc60l6hae/matador-freerain22-waterproof-packable-backpack/) [Matador](https://onebag.travel/brand/matador/)

22L 0.3kg 92% fit

**59%** match **5L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/fqc60l6hae/matador-freerain22-waterproof-packable-backpack/)

[![Lowe Alpine Edge 22 carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1788990378/carryons/lowe-alpine-edge-22-02onhar3qa.webp)](https://onebag.travel/carryon/02onhar3qa/lowe-alpine-edge-22/)

[Lowe Alpine Edge 22](https://onebag.travel/carryon/02onhar3qa/lowe-alpine-edge-22/) [Lowe Alpine](https://onebag.travel/brand/lowe-alpine/)

22L 0.6kg 40% fit

**59%** match **5L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/02onhar3qa/lowe-alpine-edge-22/)

[![Mystery Ranch Scree 22 carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1788990388/carryons/mystery-ranch-scree-22-n877lo2t6y.webp)](https://onebag.travel/carryon/n877lo2t6y/mystery-ranch-scree-22/)

[Mystery Ranch Scree 22](https://onebag.travel/carryon/n877lo2t6y/mystery-ranch-scree-22/) [Mystery Ranch](https://onebag.travel/brand/mystery-ranch/)

22L 0.9kg 39% fit

**59%** match **5L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/n877lo2t6y/mystery-ranch-scree-22/)

[![KS Ultralight Tao carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1601079762/carryons/tao_klvueq.webp)](https://onebag.travel/carryon/985cttn4v5/ks-ultralight-tao/)

[KS Ultralight Tao](https://onebag.travel/carryon/985cttn4v5/ks-ultralight-tao/) [KS Ultralight Gear](https://onebag.travel/brand/ks-ultralight-gear/)

35L 0.3kg 1% fit

**59%** match **8L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/985cttn4v5/ks-ultralight-tao/)

[![Gossamer Gear Mariposa carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1788990365/carryons/gossamer-gear-mariposa-10tqh8wtds.webp)](https://onebag.travel/carryon/10tqh8wtds/gossamer-gear-mariposa/)

[Gossamer Gear Mariposa](https://onebag.travel/carryon/10tqh8wtds/gossamer-gear-mariposa/) [Gossamer Gear](https://onebag.travel/brand/gossamer-gear/)

36L 0.9kg 47% fit

**59%** match **9L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/10tqh8wtds/gossamer-gear-mariposa/)

[![Matador Freefly16 carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1788990382/carryons/matador-freefly16-40ql564fuq.webp)](https://onebag.travel/carryon/40ql564fuq/matador-freefly16/)

[Matador Freefly16](https://onebag.travel/carryon/40ql564fuq/matador-freefly16/) [Matador](https://onebag.travel/brand/matador/)

16L 0.2kg 93% fit

**59%** match **11L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/40ql564fuq/matador-freefly16/)

[![Hill People Gear Tarahumara carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1601599547/carryons/hillpeoplehama_vpq4ho.webp)](https://onebag.travel/carryon/cb7ihqmtrf/hill-people-gear-tarahumara/)

[Hill People Gear Tarahumara](https://onebag.travel/carryon/cb7ihqmtrf/hill-people-gear-tarahumara/) [Hill People Gear](https://onebag.travel/brand/hill-people-gear/)

16L 0.7kg 96% fit

**59%** match **11L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/cb7ihqmtrf/hill-people-gear-tarahumara/)

[![Yeti Ranchero 27L carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1788990465/carryons/yeti-ranchero-27l-kmtj0q45qv.webp)](https://onebag.travel/carryon/kmtj0q45qv/yeti-ranchero-27l/)

[Yeti Ranchero 27L](https://onebag.travel/carryon/kmtj0q45qv/yeti-ranchero-27l/) [Yeti](https://onebag.travel/brand/yeti/)

27L 1.7kg 39% fit

**54%** match **0L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/kmtj0q45qv/yeti-ranchero-27l/)

[![Gregory Nano 28L carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1788990371/carryons/gregory-nano-28l-571tduqeup.webp)](https://onebag.travel/carryon/571tduqeup/gregory-nano-28l/)

[Gregory Nano 28L](https://onebag.travel/carryon/571tduqeup/gregory-nano-28l/) [Gregory](https://onebag.travel/brand/gregory/)

28L 0.6kg 69% fit

**54%** match **1L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/571tduqeup/gregory-nano-28l/)

[![Fjallraven Vardag 28 carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1624969874/carryons/Fjallraven_Vardag_28_qa4k7z.webp)](https://onebag.travel/carryon/t8ggm6g3zf/fjallraven-vardag-28/)

[Fjallraven Vardag 28](https://onebag.travel/carryon/t8ggm6g3zf/fjallraven-vardag-28/) [Fjallraven](https://onebag.travel/brand/fjallraven/)

28L 0.8kg 92% fit

**54%** match **1L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/t8ggm6g3zf/fjallraven-vardag-28/)

No photo yet

[Patagonia Terravia 28L](https://onebag.travel/carryon/6oxn4kadrw/patagonia-terravia-28l/) [Patagonia](https://onebag.travel/brand/patagonia/)

28L 0.7kg 17% fit

**54%** match **1L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/6oxn4kadrw/patagonia-terravia-28l/)

No photo yet

[Remote Equipment Charlie 25 Pack](https://onebag.travel/carryon/n3xnzi0aop/remote-equipment-charlie-25-pack/) [Remote Equipment](https://onebag.travel/brand/remote-equipment/)

25L 1.3kg 89% fit

**54%** match **2L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/n3xnzi0aop/remote-equipment-charlie-25-pack/)

No photo yet

[Deuter Speed Lite 25](https://onebag.travel/carryon/lp39stxfyl/deuter-speed-lite-25/) [Deuter](https://onebag.travel/brand/deuter/)

25L 0.7kg 47% fit

**54%** match **2L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/lp39stxfyl/deuter-speed-lite-25/)

[![REI Co-op Trail Pack 25 carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1601602563/carryons/reicoop_o83w5i.webp)](https://onebag.travel/carryon/cfo1f254gp/rei-co-op-trail-pack-25/)

[REI Co-op Trail Pack 25](https://onebag.travel/carryon/cfo1f254gp/rei-co-op-trail-pack-25/) [REI Co-op](https://onebag.travel/brand/rei-co-op/)

25L 0.8kg 94% fit

**54%** match **2L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/cfo1f254gp/rei-co-op-trail-pack-25/)

[![Gregory Nano 24L carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1788990370/carryons/gregory-nano-24l-h2wqbb6cug.webp)](https://onebag.travel/carryon/h2wqbb6cug/gregory-nano-24l/)

[Gregory Nano 24L](https://onebag.travel/carryon/h2wqbb6cug/gregory-nano-24l/) [Gregory](https://onebag.travel/brand/gregory/)

24L 0.6kg 70% fit

**54%** match **3L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/h2wqbb6cug/gregory-nano-24l/)

[![ULA Equipment Robic 30L Dragonfly carry-on backpack](https://res.cloudinary.com/obt/image/upload/c_fill,w_360/v1788990720/carryons/ula-equipment-robic-30l-dragonfly-4m2f3v4hsj.webp)](https://onebag.travel/carryon/4m2f3v4hsj/ula-equipment-robic-30l-dragonfly/)

[ULA Equipment Robic 30L Dragonfly](https://onebag.travel/carryon/4m2f3v4hsj/ula-equipment-robic-30l-dragonfly/) [ULA Equipment](https://onebag.travel/brand/ula-equipment/)

30L 0.7kg 93% fit

**54%** match **3L** diff [Compare →](https://onebag.travel/compare/5uozk4l5zy/ks-ultralight-ks27/4m2f3v4hsj/ula-equipment-robic-30l-dragonfly/)