01 / Fit
Choose the right size.
Understand standard-size and Japanese-size differences before selecting sleeves.
Read size guide ›The Vault Protection Lab | Card Sleeves & Collector Guides
The Vault / Learn
Protection begins
with knowledge.
The ArkaiV Protection Lab brings together practical, evidence-conscious card-care resources for Philippine TCG players and collectors.
Essentials
Learn what really protects a card.
02 / Layers
Build your protection.
Learn when and how to use inner sleeves, outer sleeves and rigid holders.
Read double-sleeving guide ›03 / Storage
Keep cards safe longer.
Explore practical approaches to wear, humidity, handling and storage.
Read humidity guide ›Collector questions
Explore our published guides.
What causes sleeve scratches?
A closer look at sleeve wear, trapped particles and safe handling.
Read guide ›Do thicker sleeves protect better?
Learn what thickness can and cannot tell you about a sleeve.
Read guide ›When should sleeves be replaced?
Know the visible signs of sleeve wear and deterioration.
Read guide ›How should collectible cards be stored?
Understand protective layers and long-term storage considerations.
Read guide ›Research mindset
Standards before superlatives.
Our long-term plan is to expand the Lab with documented product evaluations, including size consistency, sleeve opacity, shuffle handling and material characteristics. Until controlled results are published, we will not invent laboratory ratings or claim independent certification.
Product specifications and testing statements should be supported by supplier documentation or repeatable ArkaiV testing. This section is an educational resource hub, not a claim that the proposed tests have been completed.