Product description LEMUVLT | Light Travel, Easy Life Outdoor Backpack Collection Rooted in Light Travel, Easy Life, LEMUVLT outdoor backpack adopts lightweight & water-resistant construction. Compact outside yet roomy inside, ideal for hiking, biking and daily outdoor adventures. Multi-Purpose Pockets | Compact Yet Roomy Storage Follow our slogan Light Travel, Easy Life. Multi divided pockets neatly store tablet, clothes, bottle, keys and outdoor gear. Compact outlook with large inner space, keep items tidy for hiking & cycling trips. Premium Functional Details | Hydration Ready (Bladder Not Included) Emergency Whistle Buckle Multi-function buckle with built-in survival whistle, adjustable straps for personalized fit & outdoor emergency protection. Hydration Tube Opening Pre-cut port for water bladder tube, effortless straw access to sip water during hiking & biking. Tube Fixing Clip Dedicated buckle locks drinking hose firmly, prevents messy swinging during strenuous outdoor activities. Insulated Inner Layer Aluminum foil liner keeps water temp stable; webbing straps fix hydration bladder securely. Note: Water bladder is NOT included. Multi-scene Application | For All Outdoor & Daily Trips Stick to our slogan Light Travel, Easy Life. Perfect for hiking, short outings, daily use and road traveling. Lightweight & space-saving design fits all your outdoor adventures effortlessly.