Size & Fit
Choose for dimensions, capacity, volume, weight, fit and airline-size intent.
Rucksack vs Backpack: How to Make the Right Choice
Compare rucksacks and backpacks by name, opening, support, fit, capacity, and use so you can specify the construction instead of relying on a label….
What Size Backpack for Backpacking? A Practical Size Guide
Find the right backpack size for backpacking by trip length, gear volume, season, base weight, and capacity from 28L ultralight packs to 60L+….
How to Measure a Backpack: Dimensions, Volume, and Fit
Learn how to measure backpack dimensions, liter capacity, torso fit, and carry-on size using geometric estimates and ASTM-based physical testing….
Standard Backpack Size Guide for Everyday Use
Compare standard backpack sizes in liters and inches for work, school, laptops, travel, fit, sports, and custom OEM product development….
How Big Is a 20L Backpack? Visual Size Guide
See how big a 20L backpack is, typical dimensions, what fits inside, and how it works for travel, school, laptops, hiking, work, and the gym….
How to Measure Torso for Backpack Fit
Learn how to measure torso for backpack fit from C7 to the iliac crest, measure your hip belt, avoid sizing mistakes, and test the final fit….
What Size Backpack for Kindergarten Is Best?
Learn what size backpack for kindergarten fits a child, folders, lunch, and school supplies, plus practical guidance for parents and B2B buyers….
Does a Backpack Count as a Personal Item?
Learn when a backpack counts as a personal item, common underseat size limits, airline examples, packing checks, and sourcing tips for travel bags….
What Size Is a Lunch Bag? Standard Sizes and Dimensions
Learn standard lunch bag sizes, dimensions, and capacities for kids, office meals, family use, meal prep, bulk orders, and custom manufacturing….