Science Clothing, Art & Books
Original science and nature designs plus books by CRV Science founder Bryan P. White
Product Details & Direct Checkout
300–350 gsm Cardstock
Rigid 12–14 pt heavyweight board built for mailing or mini-framing
Coated Art Front
Smooth protective finish highlights fine biological linework
Blank Writable Reverse
Clean, unlined uncoated matte back accepts ink without smudging
4″×6″ Standard Format
Ready for custom notes, field sketches, postage, or desk display
Save the Sloths (Adopt-a-Sloth) - Standard Postcard 4"x6"
Conservation-inspired illustration celebrating arboreal xenarthran biology and rainforest habitat preservation.
Conservation-inspired illustration celebrating arboreal xenarthran biology and rainforest habitat preservation. Printed on thick 4″×6″ (300–350 g/m²) archival cardstock with a protective coated front for vivid detail and a completely blank uncoated reverse for effortless writing, sketching, or framing.
Printful On-Demand Fulfillment
Crafted in 2–5 business days. Shipped tracked in eco-friendly packaging worldwide.
| Dimensions | 4″ × 6″ (10.2 × 15.2 cm) standard postcard format |
| Paper Weight | 12–14 pt (300–350 g/m²) heavyweight archival cardstock |
| Front Finish | Protective coated front for high-contrast color reproduction |
| Reverse Side | Blank uncoated matte writable reverse (no pre-printed lines) |
| Fulfillment | Custom printed on demand at the nearest Printful studio |
- Store or frame away from moisture and direct prolonged UV sunlight.
- Allow liquid or gel ink to dry briefly on the uncoated reverse before mailing.
Every postcard is custom printed to order on heavyweight cardstock and shipped in rigid protective mailers.
| Production Time | 2–5 business days |
| US Standard Delivery | 3–6 business days ($4.99 or FREE over $50) |
| US Express Delivery | 2–3 business days ($9.99) |
| International Delivery | 5–14 business days |
- 30-Day Damage, Defect & Misprint Guarantee: Any item arriving damaged, defective, or misprinted is eligible for a 100% free replacement or full refund within 30 days of delivery—no return shipping required.
- Made-to-Order Sustainability Policy: Because every garment, canvas, and decal is custom-printed on demand via Printful to eliminate textile overproduction waste, we do not stock inventory for buyer's remorse. Please check our interactive Size Guide before ordering, or contact us via our Support & Returns Form if you need help with an order.
- 2-Hour Pre-Production Modification Window: Orders may be modified or canceled within 2 hours of checkout before entering the DTG production queue.