Warmth in any garment comes from trapped air rather than from thickness for its own sake, and cotton padding is a cheap and effective way to hold a lot of it. This jumper puts a padded layer underneath a soft fleece outer, which is why it feels warmer than its weight suggests when a dog is standing about in a cold garden waiting for you to catch up with the lead.

The teddy-bear finish on the outer face is more than decoration, because a looped, brushed pile holds a layer of air at the surface as well, adding a second bit of insulation without adding bulk that a small dog then has to carry around. It pulls on over the head, which is the easiest style by far for a dog who dislikes being dressed, with nothing to fasten under the belly. Colours are white, yellow and green, in sizes from S up to 2XL.

• Cotton-padded body under a soft fleece outer
• Brushed teddy-bear-style finish
• Pull-on design with no fastenings
• White, yellow and green
• Sizes S to 2XL
• Suits cold-weather walks and indoor lounging

On what padding does and does not do. Cotton padding insulates well and sheds water badly. Once it is wet it stays wet, and a soaked padded jumper pulls heat out of a dog instead of holding it in, so treat this as a dry-cold layer for frosty mornings and indoors rather than a wet-weather coat. Measure back length and chest girth against the chart, since padded garments have much less give than a plain knit.

Who it's for: small dogs who feel the cold on dry winter days, and owners who want warmth without a bulky coat.