Size:S Bust:34-42cm/13.39-16.54'' Neck:30-34cm/11.81-13.39'' Size:M Bust:42-55cm/16.54-21.65'' Neck:32-35cm/12.60-13.78'' Size:L Bust:50-65cm/19.69-25.59'' Neck:38-42cm/14.96-16.54'' Size:XL Bust:60-70cm/23.62-27.56'' Neck:42-46cm/16.54-18.11'' During daily walks, it enables you to easily control your walking direction, ensuring that they can safely explore the world around you. Whether in a peaceful garden or in a bustling street and alley, you and your pet can enjoy a wonderful time together. When you take your pet out, this chest strap is even more so. Its comfortable design does not cause any pressure to the pet, and it will not feel cumbersome even after long wear. Whether for daily walking training or for outings, this pet and dog chest strap is your best companion, adding fun and safety to every trip for you and your pet. Included: 1 * pet chest strap 🎒 Backpack + Harness in One – Your Dog’s First “Travel Bag”! This isn’t just a harness—it’s a walking adventure kit. The back features a zippered mini backpack, perfectly sized to hold treats, poop bags, small toys, or wipes. No more stuffing items in your pockets or carrying extra pouches. Whether you're on a city walk or weekend hike, your pup carries their own essentials—like a true little explorer. Dog parents: imagine filming your Pom trotting down a tree-lined path, backpack bouncing gently, tail wagging proudly. It’s not just cute—it’s independence in motion. 🛡️ Breathable & Waterproof + Reflective Design - All-Weather Comfort! Combines soft breathable mesh lining that prevents overheating with waterproof outer fabric that protects against light rain and damp grass. The reflective strips add crucial visibility during dusk or dawn walks, while the ergonomic distributed pressure design ensures comfortable wearing without choking risk. 🌈 2 Complete Color Sets - Double the Styling Options! Get two coordinated harness and leash sets in one package (purple+blue and pink+olive green) for versatile styling that matches different moods and occasions. The cheerful plaid patterns with colorful buckle accents create photogenic looks that will make your dog the star of any outdoor photoshoot or neighborhood walk! 📏 3 Size Options with Guide - Measure for Perfect Fit! Available in M (16.5-21.6 inch chest), L (19.5-25.5 inch), and XL (23.5-29.5 inch) to fit most small breeds. Always measure your dog's chest at the widest part and neck circumference - if between sizes, choose the larger option for optimal comfort and movement freedom. The precise sizing ensures both security and comfort for all-day wear. 🔗 Quick-Release & Adjustable Fit - Stress-Free Dressing! The front quick-release buckle allows easy wearing and removal, while adjustable straps at multiple points provide customized fitting as your dog grows. The durable D-ring offers secure leash attachment, and the 5-foot woven leash with anti-slip handle ensures comfortable control during walks.