- Product Specs: • Brand: Nalgene • Model: Narrow Mouth Sustain • Capacity: 32 oz • Leak-proof screw-on cap • Compatible with most water filters - Technical Information: • BPA-free and phthalate-free • Made from 100% recycled materials • Designed for durability and long-lasting use • Narrow mouth opening for controlled flow and easy cleaning - Fabric/Material Details: • Constructed from Tritan Renew™ plastic, a sustainable, BPA-free polymer • Resistant to odors and stains • Environmentally conscious manufacturing process - Fabric Care Instructions: • Dishwasher safe (top rack recommended) • Hand wash cap and threads for extended lifespan • Avoid extreme temperatures to maintain integrity • Do not microwave or freeze