Is this top warm enough on its own?

It is a midweight knit, so it works alone in mild fall weather. In cold winter conditions, treat it as a layer under a jacket or sweater.

What is interlock knit?

Interlock is a double-knit fabric with a smooth face on both sides. It stretches less than jersey and resists twisting, so the mock neck keeps its shape.

How should I wash it?

Machine wash cold and tumble dry low. Turn it inside out to reduce pilling on the cotton blend.

Does it run true to size?

It is listed as regular fit in S through XXL. If you plan to layer it over a shirt, consider sizing up.

When is the best time to buy it?

Mock necks sell fastest in fall and winter. Watch for markdowns in late winter and early spring clearance.

St. John's Bay Interlock Men's Long Sleeve Mock Neck Top

Last price we saw

$14.99at JCPenney, last seen Nov 2

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Our take on the St. John's Bay Interlock Men's Long Sleeve Mock Neck Top

The St. John's Bay Interlock Mock Neck Top is a men's long-sleeve pullover in a solid interlock knit, cut with a high mock neck for fall and winter layering. It comes in regular sizes S through XXL and six colors, in cotton or cotton-blend jersey. It is a basic layering piece rather than a technical base layer. No current price was provided, so check the live comparison for where it sits against its recent range.