GTBuy Underwear/Underpants Spreadsheet
The GTBuy Underwear and Underpants Spreadsheet covers boxers, briefs, compression layers, and base layers. This category is underrated for quality. The best batches in 2026 use proper cotton blends, flatlock stitching, and elastic waistbands that hold up over time. This page explains what to check and how to enter the full Underwear catalog.
What to Buy in Underwear/Underpants
- Boxer briefs and trunks
- Compression shorts and base layers
- Briefs and classic cuts
- Multi-packs and seasonal colors
How to Judge Quality
- Fabric blend should be at least 90% cotton or a breathable synthetic
- Waistband elastic should be wide and stitched evenly
- Flatlock seams should prevent chafing on the inner thigh
- Leg openings should be tight enough to stay in place
Common Mistakes
- Buying purely by price: cheap waistbands stretch out in weeks
- Not checking the fabric blend: polyester-heavy blends trap heat
- Ignoring the inseam: longer inseams are more comfortable for movement
- Ordering the wrong pack size: some listings are singles, some are packs
Sizing & Fit Tips
Underwear sizing is more forgiving than pants, but still check the waist measurement. If you are between sizes, go up. Tight underwear is uncomfortable and wears out faster.
QC Checklist
Before you confirm shipping, check these points in your QC photos:
- Fabric blend and breathability
- Waistband width and stitching
- Flatlock seam quality
- Leg opening tension
- Tag printing and placement
- Packaging and quantity
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