Fast Shipping | Local Pickup Available

Rockies

Size Guide

1 item left

Size

Description

We've updated this vintage classic from its original royal blue to a crisp navy blue. The Rockies onesie is a favorite among winter enthusiasts for its mountain-inspired style.

How tough is it? This heavy-duty jumpsuit literally made it to Mount Everest! It’s definitive proof that our premium, heavyweight fleece is warm enough for some of the harshest conditions on earth.

Features

  • Original UNI onesie is made from super soft, premium fabric
  • 80% Cotton, 20% Polyester — Brushed fleece interior
  • Heavyweight 350gsm fabric
  • Half-Moon butt flap zipper (essential for cold outdoor nights!)
  • Two-way YKK® front zipper with UNI pull tab
  • YKK® zipper side pockets
  • Spacious hood & oversized drawstrings
  • Embroidered "UNI" logo on chest & above left cuff
  • Embroidered "chillwear" branding
  • Designed in Canada
  • Elastic ankle bands & ribbed wrist cuffs
  • Kangaroo Pouch

Fit & Sizing

Unisex fit. Women usually size down for a more fitted look.

  • Male model: 6'0" (182cm) / 180lbs wearing Medium (M)
  • Female model: 5'7" (174cm) / 125lbs wearing Extra Small (XS)

All onesies are unisex. For women, we recommend choosing one size smaller than you normally select for the best fit.

Story

The Rockies is built for the outdoors—just ask Ciera Knight, who wore the original jumpsuit while scaling the tallest mountain on earth. Ciera wore our onesie under her climbing gear and inside her sleeping bag at night to stay warm.

We equipped it with our signature Half-Moon trap door zipper, which proved to be an invaluable asset for those freezing late-night breaks on the mountain!

Shipping & Returns

Orders typically ship within 1 business day. We offer discounted flat-rate shipping within Canada, fast DHL delivery to the US, and international shipping to destinations outside North America in approximately 1 week.

Returns and exchanges are accepted within 14 days for items in original, unworn condition. We cover return shipping costs, and any item affected by a manufacturing defect will be replaced at no additional charge.


Related Items


Size Me Up
Unichill onesies fit on the comfy side.
Our onesies are made with wedgie-proof drop crotches and a relaxed mid-section for optimal comfort. 
Unichill onesie size chart
Shot us an email if you have any questions!