diff --git a/Recyclable.Collections.Benchmarks/POC/ModuloPoc.Benchmarks.cs b/Recyclable.Collections.Benchmarks/POC/ModuloPoc.Benchmarks.cs
index 6923785..7416e5d 100644
--- a/Recyclable.Collections.Benchmarks/POC/ModuloPoc.Benchmarks.cs
+++ b/Recyclable.Collections.Benchmarks/POC/ModuloPoc.Benchmarks.cs
@@ -37,7 +37,7 @@ namespace Recyclable.Collections.Benchmarks.POC
         [GlobalSetup]
         public void Setup()
         {
-            _cutoff = BlockSize << 4;
+            _cutoff = checked((long)BlockSize << 4);
             _increment = Vector128.Create(-BlockSize, 1L);
             _lastCaseIndex = 0;
         }
diff --git a/Recyclable.Collections.Benchmarks/POC/RoundUpToPowerOf2vsOthers.cs b/Recyclable.Collections.Benchmarks/POC/RoundUpToPowerOf2vsOthers.cs
index b0f3948..96906d9 100644
--- a/Recyclable.Collections.Benchmarks/POC/RoundUpToPowerOf2vsOthers.cs
+++ b/Recyclable.Collections.Benchmarks/POC/RoundUpToPowerOf2vsOthers.cs
@@ -54,7 +54,7 @@ namespace Recyclable.Collections.Benchmarks.POC
 			int result = 1;
 			while (result < value)
 			{
-				result <<= 1;
+				result = checked(result << 1);
 			}
 
 			return result;
diff --git a/Recyclable.Collections/MathUtils.cs b/Recyclable.Collections/MathUtils.cs
index d82edc1..c7e37f8 100644
--- a/Recyclable.Collections/MathUtils.cs
+++ b/Recyclable.Collections/MathUtils.cs
@@ -14,7 +14,7 @@ namespace Recyclable.Collections
 		[MethodImpl(MethodImplOptions.AggressiveInlining)]
 		public static long DivMod(long number, int divider, out long remainder)
 		{
-			if (number >= divider << 4)
+			if (number >= checked((long)divider << 4))
 			{
 				return Math.DivRem(number, divider, out remainder);
 			}
diff --git a/Recyclable.Collections/RecyclableList.Helpers.cs b/Recyclable.Collections/RecyclableList.Helpers.cs
index 8ffb960..a33a5ff 100644
--- a/Recyclable.Collections/RecyclableList.Helpers.cs
+++ b/Recyclable.Collections/RecyclableList.Helpers.cs
@@ -15,7 +15,7 @@ namespace Recyclable.Collections
 			// TODO: Measure performance
 			// T[] newMemoryBlock = RecyclableListHelpers<T>._arrayPool.Rent(_capacity <<= 1);
 			T[] oldMemoryBlock = list._memoryBlock;
-			list._memoryBlock = (list._capacity <<= 1) < RecyclableDefaults.MinPooledArrayLength
+			list._memoryBlock = checked(list._capacity <<= 1) < RecyclableDefaults.MinPooledArrayLength
 				? new T[list._capacity]
 				: RecyclableArrayPool<T>.RentShared(list._capacity);
 
diff --git a/Recyclable.Collections/RecyclableLongList.Helpers.cs b/Recyclable.Collections/RecyclableLongList.Helpers.cs
index e2c43cf..b7e870e 100644
--- a/Recyclable.Collections/RecyclableLongList.Helpers.cs
+++ b/Recyclable.Collections/RecyclableLongList.Helpers.cs
@@ -192,7 +192,7 @@ namespace Recyclable.Collections
 					}
 				}
 
-				return requiredBlockCount << minBlockSizePow2Shift;
+				return checked(requiredBlockCount << minBlockSizePow2Shift);
 			}
 
 #pragma warning disable CA2208
diff --git a/Recyclable.Collections/RecyclableLongList.IndexOfHelpers.cs b/Recyclable.Collections/RecyclableLongList.IndexOfHelpers.cs
index 8bc01d3..c3f0756 100644
--- a/Recyclable.Collections/RecyclableLongList.IndexOfHelpers.cs
+++ b/Recyclable.Collections/RecyclableLongList.IndexOfHelpers.cs
@@ -28,7 +28,7 @@ namespace Recyclable.Collections
 					long index = Array.IndexOf(list._memoryBlocks[blockIndex], itemToFind, 0, list._blockSize);
 					if (index >= 0 && (!context._isItemFound || index < context.FoundItemIndex))
 					{
-						ExchangeFoundItemIndexIfLower(context, blockIndex, ((long)blockIndex << list._blockSizePow2BitShift) + index);
+						ExchangeFoundItemIndexIfLower(context, blockIndex, checked((long)blockIndex << list._blockSizePow2BitShift) + index);
 						return;
 					}
 					else if (context._isItemFound)
@@ -41,7 +41,7 @@ namespace Recyclable.Collections
 					index = Array.IndexOf(list._memoryBlocks[blockIndex + 1], itemToFind, 0, list._blockSize);
 					if (index >= 0)
 					{
-						ExchangeFoundItemIndexIfLower(context, blockIndex + 1, ((long)(blockIndex + 1) << list._blockSizePow2BitShift) + index);
+						ExchangeFoundItemIndexIfLower(context, blockIndex + 1, checked((long)(blockIndex + 1) << list._blockSizePow2BitShift) + index);
 						return;
 					}
 					else if (context._isItemFound)
@@ -56,7 +56,7 @@ namespace Recyclable.Collections
 					index = Array.IndexOf(list._memoryBlocks[blockIndex + 2], itemToFind, 0, list._blockSize);
 					if (index >= 0 && (!context._isItemFound || index < context.FoundItemIndex))
 					{
-						ExchangeFoundItemIndexIfLower(context, blockIndex + 2, ((long)(blockIndex + 2) << list._blockSizePow2BitShift) + index);
+						ExchangeFoundItemIndexIfLower(context, blockIndex + 2, checked((long)(blockIndex + 2) << list._blockSizePow2BitShift) + index);
 						return;
 					}
 					else if (context._isItemFound)
@@ -71,7 +71,7 @@ namespace Recyclable.Collections
 					index = Array.IndexOf(list._memoryBlocks[blockIndex + 3], itemToFind, 0, list._blockSize);
 					if (!context._isItemFound && index >= 0)
 					{
-						ExchangeFoundItemIndexIfLower(context, blockIndex + 3, ((long)(blockIndex + 3) << list._blockSizePow2BitShift) + index);
+						ExchangeFoundItemIndexIfLower(context, blockIndex + 3, checked((long)(blockIndex + 3) << list._blockSizePow2BitShift) + index);
 					}
 
 #endif
@@ -81,7 +81,7 @@ namespace Recyclable.Collections
 					index = Array.IndexOf(list._memoryBlocks[blockIndex + 4], itemToFind, 0, list._blockSize);
 					if (!context._isItemFound && index >= 0 && (!context._isItemFound || index < context.FoundItemIndex))
 					{
-						ExchangeFoundItemIndexIfLower(context, blockIndex + 4, ((long)(blockIndex + 4) << list._blockSizePow2BitShift) + index);
+						ExchangeFoundItemIndexIfLower(context, blockIndex + 4, checked((long)(blockIndex + 4) << list._blockSizePow2BitShift) + index);
 					}
 					
 #endif
@@ -91,7 +91,7 @@ namespace Recyclable.Collections
 					index = Array.IndexOf(list._memoryBlocks[blockIndex + 5], itemToFind, 0, list._blockSize);
 					if (!context._isItemFound && index >= 0 && (!context._isItemFound || index < context.FoundItemIndex))
 					{
-						ExchangeFoundItemIndexIfLower(context, blockIndex + 5, ((long)(blockIndex + 5) << list._blockSizePow2BitShift) + index);
+						ExchangeFoundItemIndexIfLower(context, blockIndex + 5, checked((long)(blockIndex + 5) << list._blockSizePow2BitShift) + index);
 					}
 
 #endif
@@ -101,7 +101,7 @@ namespace Recyclable.Collections
 					index = Array.IndexOf(list._memoryBlocks[blockIndex + 6], itemToFind, 0, list._blockSize);
 					if (!context._isItemFound && index >= 0 && (!context._isItemFound || index < context.FoundItemIndex))
 					{
-						ExchangeFoundItemIndexIfLower(context, blockIndex + 6, ((long)(blockIndex + 6) << list._blockSizePow2BitShift) + index);
+						ExchangeFoundItemIndexIfLower(context, blockIndex + 6, checked((long)(blockIndex + 6) << list._blockSizePow2BitShift) + index);
 					}
 
 #endif
@@ -111,7 +111,7 @@ namespace Recyclable.Collections
 					index = Array.IndexOf(list._memoryBlocks[blockIndex + 7], itemToFind, 0, list._blockSize);
 					if (!context._isItemFound && index >= 0 && (!context._isItemFound || index < context.FoundItemIndex))
 					{
-						ExchangeFoundItemIndexIfLower(context, blockIndex + 7, ((long)(blockIndex + 7) << list._blockSizePow2BitShift) + index);
+						ExchangeFoundItemIndexIfLower(context, blockIndex + 7, checked((long)(blockIndex + 7) << list._blockSizePow2BitShift) + index);
 					}
 
 #endif
@@ -157,7 +157,7 @@ namespace Recyclable.Collections
 					long index = Array.IndexOf(list._memoryBlocks[blockIndex], itemToFind, 0, list._blockSize);
 					if (!context._isItemFound && index >= 0)
 					{
-						ExchangeFoundItemIndexIfLower(context, blockIndex, ((long)blockIndex << list._blockSizePow2BitShift) + index);
+						ExchangeFoundItemIndexIfLower(context, blockIndex, checked((long)blockIndex << list._blockSizePow2BitShift) + index);
 					}
 				}
 				catch (Exception e)
@@ -214,8 +214,8 @@ namespace Recyclable.Collections
 				// & WAS SLOWER
 				// int blockSize = _blockSize;
 				// & WAS SLOWER
-				// while ((blockIndex << list._blockSizePow2BitShift) + itemIndex > step)
-				//long blockSize = list._blockSize << 1;
+				// while (checked((long)blockIndex << list._blockSizePow2BitShift) + itemIndex > step)
+				//long blockSize = checked((long)list._blockSize << 1);
 				int lastBlockWithData = list._lastBlockWithData - BlocksForEachTask;
 				while (blockIndex < lastBlockWithData)
 				{
@@ -265,7 +265,7 @@ namespace Recyclable.Collections
 					int itemIndex = Array.IndexOf(list._memoryBlocks[list._lastBlockWithData], item, 0, list._nextItemIndex > 0 ? list._nextItemIndex : list._blockSize);
 					if (!context._isItemFound && itemIndex >= 0)
 					{
-						ExchangeFoundItemIndexIfLower(context, blockIndex, ((long)blockIndex << list._blockSizePow2BitShift) + itemIndex);
+						ExchangeFoundItemIndexIfLower(context, blockIndex, checked((long)blockIndex << list._blockSizePow2BitShift) + itemIndex);
 					}
 				}
 
@@ -307,7 +307,7 @@ namespace Recyclable.Collections
 					itemIndex = Array.IndexOf(memoryBlocksSpan[blockIndex], item, 0, list._blockSize);
 					if (itemIndex >= 0)
 					{
-						return itemIndex + ((long)blockIndex << list._blockSizePow2BitShift);
+						return itemIndex + checked((long)blockIndex << list._blockSizePow2BitShift);
 					}
 
 					if (blockIndex + 1 <  list._lastBlockWithData)
@@ -315,7 +315,7 @@ namespace Recyclable.Collections
 						itemIndex = Array.IndexOf(memoryBlocksSpan[blockIndex + 1], item, 0, list._blockSize);
 						if (itemIndex >= 0)
 						{
-							return itemIndex + ((long)(blockIndex + 1)<< list._blockSizePow2BitShift);
+							return itemIndex + checked((long)(blockIndex + 1)<< list._blockSizePow2BitShift);
 						}
 
 						if (blockIndex + 2 <  list._lastBlockWithData)
@@ -323,7 +323,7 @@ namespace Recyclable.Collections
 							itemIndex = Array.IndexOf(memoryBlocksSpan[blockIndex + 2], item, 0, list._blockSize);
 							if (itemIndex >= 0)
 							{
-								return itemIndex + ((long)(blockIndex + 2)<< list._blockSizePow2BitShift);
+								return itemIndex + checked((long)(blockIndex + 2)<< list._blockSizePow2BitShift);
 							}
 
 							if (blockIndex + 3 <  list._lastBlockWithData)
@@ -331,7 +331,7 @@ namespace Recyclable.Collections
 								itemIndex = Array.IndexOf(memoryBlocksSpan[blockIndex + 3], item, 0, list._blockSize);
 								if (itemIndex >= 0)
 								{
-									return itemIndex + ((long)(blockIndex + 3)<< list._blockSizePow2BitShift);
+									return itemIndex + checked((long)(blockIndex + 3)<< list._blockSizePow2BitShift);
 								}
 							}
 						}
@@ -342,7 +342,7 @@ namespace Recyclable.Collections
 					? Array.IndexOf(memoryBlocksSpan[list._lastBlockWithData], item, 0, list._nextItemIndex)
 					: Array.IndexOf(memoryBlocksSpan[list._lastBlockWithData], item, 0, list._blockSize);
 
-				return itemIndex >= 0 ? itemIndex + ((long)list._lastBlockWithData << list._blockSizePow2BitShift) : RecyclableDefaults.ItemNotFoundIndexLong;
+				return itemIndex >= 0 ? itemIndex + checked((long)list._lastBlockWithData << list._blockSizePow2BitShift) : RecyclableDefaults.ItemNotFoundIndexLong;
 			}
 		}
 	}
diff --git a/Recyclable.CollectionsTests/RecyclableListTests.cs b/Recyclable.CollectionsTests/RecyclableListTests.cs
index 1997e88..ebfa680 100644
--- a/Recyclable.CollectionsTests/RecyclableListTests.cs
+++ b/Recyclable.CollectionsTests/RecyclableListTests.cs
@@ -183,7 +183,7 @@ namespace Recyclable.CollectionsTests
 		{
 			// Prepare
 			using var list = new RecyclableList<long>();
-			itemsCount <<= 1;
+			itemsCount = checked(itemsCount << 1);
 
 			// Act
 			if (testCase.Contains("Array[", StringComparison.OrdinalIgnoreCase))
@@ -275,7 +275,7 @@ namespace Recyclable.CollectionsTests
 			// Prepare
 			using var list = new RecyclableList<long>();
 			testData = testData.Concat(testData.Reverse());
-			itemsCount <<= 1;
+			itemsCount = checked(itemsCount << 1);
 
 			// Act
 			foreach (var index in testData)
@@ -340,7 +340,7 @@ namespace Recyclable.CollectionsTests
 		{
 			// Prepare
 			using var list = new RecyclableList<long>();
-			itemsCount <<= 1;
+			itemsCount = checked(itemsCount << 1);
 
 			// Act
 			list.AddRange(testData);
@@ -416,7 +416,7 @@ namespace Recyclable.CollectionsTests
 		{
 			// Prepare
 			testData = testData.Concat(testData.Reverse());
-			itemsCount <<= 1;
+			itemsCount = checked(itemsCount << 1);
 
 			// Act
 			using var list = new RecyclableList<long>(testData, itemsCount);
@@ -1633,7 +1633,7 @@ namespace Recyclable.CollectionsTests
 		{
 			// Prepare
 			using var list = new RecyclableList<long>(testData, itemsCount);
-			var expectedCapacity = (int)BitOperations.RoundUpToPowerOf2((uint)itemsCount << 1);
+			var expectedCapacity = (int)BitOperations.RoundUpToPowerOf2(checked((uint)itemsCount << 1));
 			expectedCapacity = expectedCapacity >= RecyclableDefaults.InitialCapacity ? expectedCapacity : RecyclableDefaults.InitialCapacity;
 
 			// Act