JULIUS-K9®

JK9®Multivest/ Swimming Vest

JK9®Multivest/ Swimming Vest - Main image
$104.99 $139.99 In stock

Category: Summer Essentials

One Vest, Four Functions — Swim, Cool, Warm & Rehabilitate Your Dog Year-Round

The JK9® Multivest is Julius-K9®'s most versatile product — a 4-in-1 dog vest that adapts to every season and situation. Whether your dog is hitting the water, recovering from surgery, or staying cool on a summer hike, this single vest does it all.

  • ✅ Swim vest — floating foam pads keep your dog buoyant and safe in the water
  • ✅ Cooling vest — dip in water and the 3D mesh fabric actively cools your dog (remove foam pads)
  • ✅ Dog coat — insulating layer to keep your dog warm in colder months
  • ✅ Rehabilitation harness — reinforced back handle and rear strap for ergonomic, spine-aligned lifting
  • ✅ Lightweight & quick-drying — 3D mesh dries fast and stays comfortable all day
  • ✅ Improved buckle placement — easier to put on at neck and abdomen, secure fit every time
  • ✅ Optimized lifting point — better weight distribution for safer lifts for dogs with limited mobility

Size Guide

Size Chest Circumference Dog Weight Vest Length
S 46–65 cm (18–25.5 in) 7–14 kg (15–31 lbs) 36 cm (14 in)
M 53–75 cm (21–29 in) 13–24 kg (29–53 lbs) 44 cm (17 in)
L 70–85 cm (27.5–33.5 in) 24–38 kg (53–84 lbs) 52 cm (20.5 in)
XL 77–99 cm (30–39 in) 38–56 kg (84–124 lbs) 55 cm (21.5 in)

Not sure which size? Use our Sizing Guide for help measuring your dog.

Customer Reviews (4.6 / 5 · 5 reviews)

Elizabeth C. ★★★★★

Took it to the lake and the swim mode kept him buoyant without riding up, then flipped to the cooling layer for the walk back—that switch is so smooth I didn't even have to take it off. He's a rescue who hates new gear, but he didn't fuss once with this on.

Emily ★★★★★

The summer heat hit hard, but swapping in the cooling function kept my old lab paddling in the pool for an extra half hour without panting like crazy. It's genuinely one vest I don't have to store away when the seasons change.

Joshua ★★★★★

The four-way switching is what sold me—going from swim mode to cooling mode takes seconds, and the fit stayed snug through a whole lake session. My girl’s a rescue who hates gear, but she didn’t fuss once, which says a lot.