Talking tigers. first the good news. A female can birth 15 cubs in her lifetime, and there’s still enough habitat to support healthy populations. Photo Ark by photographer Joel Sartore specializes in documenting endangered species. With your help we can take action to save charming, fierce and wonderful creatures: A revenue share of each sale of these zip pockets is donated to help further the work of National Geographic scientists, explorers and educators around the world. PHOTO ARK ™ and © Joel Sartore, © 2020 National Geographic Partners, LLC. We thought you'd never ask! I weigh 56 g (1. 98 oz). I can carry 20 kg (44 lbs). My size 50 x 42 cm (19. 7" x 16. 5"). My zip pocket 11. 5 x 11. 5 cm (4. 5" x 4. 5"). My handle 27 cm (10. 6"). I'm water resistant. I'm made of polyester. I'm STANDARD 100 by OEKO-TEX® certified.