Underwear/Underpants — KakoBuy Spreadsheet

This is the KakoBuy Spreadsheet category page for Underwear/Underpants. The full catalog for this category is on AstroReps. Use this page to understand what to look for before you click through.

Category Overview: Underwear is the most personal category on the KakoBuy Spreadsheet. While it is not the most glamorous category, it is one of the most practical. Good underwear is about fabric softness, waistband elasticity, and fit. The challenge is that these qualities are hard to judge from photos. The key is to focus on material composition and waistband construction. This guide shows you how to find underwear that is comfortable and durable.

Buying Tips: Material composition is the most important factor for underwear. Cotton is the most breathable and comfortable. Modal is softer and more durable. Bamboo is the most eco-friendly and antimicrobial. Check the waistband: a good waistband has reinforced stitching and retains elasticity after washing. The fit should be snug but not tight. For boxers, check the leg length and the fly construction. For briefs, check the pouch design and support. Underwear is the perfect category for bulk orders because it is lightweight and cheap.

Common Mistakes: Ignoring material composition Not checking waistband construction Buying the wrong size without checking the chart Assuming all underwear is the same quality Skipping QC photos of the waistband and stitching

QC Focus: Material composition and softness Waistband elasticity and stitching Seam construction and comfort Tag placement and accuracy Fly construction for boxers Pouch design for briefs

Size & Material: Underwear sizing on the KakoBuy catalog is usually based on waist measurement. Measure your waist at the narrowest point and compare to the chart. If you are between sizes, size up for comfort. For material, cotton is the safest choice. Modal is softer but more expensive. Bamboo is the best for sensitive skin.

Style Direction: In 2026, boxer briefs and trunks are the most popular styles. Neutral colors and classic patterns are the safest choices. For boxers, longer leg lengths are trending.