Cotton vs. Canvas vs. RPET: Which Bag Material Is Right for Your Brand?

Jun 18, 2026

Side-by-side material comparison of eco-friendly bag fabrics — each with distinct weight, texture, and performance characteristics.

Introduction

A promotional merchandise buyer once chose cotton bags because they "photograph well" — only to face customer complaints about fading after 12 washes by Q3. Material selection is one of the highest-stakes decisions in B2B bag procurement. This guide compares cotton, canvas, and RPET across six dimensions relevant to B2B buyers.

Understanding the Base Materials

Cotton refers to woven fabric from natural fibers, typically 120–280 gsm. Canvas is a tighter-weave, heavier subcategory (280–420 gsm) offering superior durability. RPET (Recycled PET) is manufactured from post-consumer plastic bottles — approximately 5–6 bottles per bag — enabling verified sustainability claims under GRS certification.

Material Comparison Matrix

Attribute	Cotton (150gsm)	Canvas (300gsm)	RPET (80gsm)
Weight per bag	~120g	~280g	~60g
Durability	Medium	High	High
Water resistance	Low	Low–Medium	High
Printing suitability	Excellent (silk screen)	Excellent (embroidery)	Good (heat transfer)
OEKO-TEX eligible	Yes	Yes	Separate GRS required
FOB cost (5,000 pcs)	USD 0.80–1.50	USD 2.00–4.50	USD 0.90–2.00
Lead time (post-sample)	25–35 days	30–45 days	25–35 days

Application Recommendations by Buyer Type

Supermarkets & grocery chains: Cotton 120–180 gsm for high-volume reusable shopping bags. OEKO-TEX required for food-adjacent applications.
Brand owners & fashion retailers: Canvas 280–400 gsm for flagship shopping bags reinforcing premium positioning.
Corporate gifting & promotional: RPET for sustainability-conscious brands needing verifiable recycled content claims.
Event & trade show organizers: Cotton or non-woven for maximum cost efficiency in single-event giveaways.

Printing Method Compatibility

Silk screen printing: Best on cotton and canvas. Minimum 1,000 pieces per color. Best for solid-area logos.
Heat transfer: Compatible with RPET and synthetics. Full-color CMYK; may peel after repeated washing.
Sublimation: Requires 80% polyester/RPET content. Photographic-quality, wash-fast prints.
Embroidery: Premium technique for cotton and canvas. USD 0.50–1.50 surcharge per piece.

Conclusion & Next Step

Material selection should be driven by end-use requirements, sustainability claims, and total landed cost. Cotton offers versatility, canvas delivers premium positioning, and RPET enables verified eco-credentials. Working with a single supplier capable of producing all three reduces sourcing complexity.

Need material samples and comparative FOB quotes across cotton, canvas, and RPET? Contact: [email protected]